Sitagliptin-impurities | Pharmaffiliates

sitagliptin and its Impurities

Sitagliptin impurity B is also known as Defluoro Sitagliptin, an impurity of Sitagliptan, an dipeptidyl peptidase-4 (DPP-4) inhibitor for treatment of diabetes mellitus type 2. Reference standards of Sitagliptin API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 94 results for sitagliptin Impurities
PA 19 0481018

(E)-1-(3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one

(E)-1-(3-(Trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one


  • Catalogue No.:PA 19 0481018

  • CAS :

    NA

  • Molecular Formula : C16H10F6N4O

  • Molecular Weight : 388.27

PA 19 0481019

3-Amino-N-((R)-4-oxo-4-(3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)-4-(2,4,5-trifluorophenyl)butanamide

3-Amino-N-((R)-4-oxo-4-(3-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)-4-(2,4,5-trifluorophenyl)butanamide


  • Catalogue No.:PA 19 0481019

  • CAS :

    NA

  • Molecular Formula : C26H21F9N6O2

  • Molecular Weight : 620.48

PA 19 0481020

(R)-3-Amino-N-((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)-4-(2,4,5-trifluorophenyl)butanamide

(R)-3-Amino-N-((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)-4-(2,4,5-trifluorophenyl)butanamide


  • Catalogue No.:PA 19 0481020

  • CAS :

     2072867-07-1

  • Molecular Formula : C26H23F9N6O2

  • Molecular Weight : 622.5

PA 19 0481021

(R)-3-Amino-4-(2,4-difluorophenyl)-1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

(R)-3-Amino-4-(2,4-difluorophenyl)-1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481021

  • CAS :

    NA

  • Molecular Formula : C15H17F2N5O

  • Molecular Weight : 321.33

PA 19 0481022

(R)-3-Amino-4-(2,5-difluorophenyl)-1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

(R)-3-Amino-4-(2,5-difluorophenyl)-1-(5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481022

  • CAS :

    NA

  • Molecular Formula : C15H17F2N5O

  • Molecular Weight : 321.33

PA 19 0481023

Methyl (R)-3-acetamido-4-(2,4,5-trifluorophenyl)butanoate

Methyl (R)-3-acetamido-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481023

  • CAS :

    1234321-83-5

  • Molecular Formula : C13H14F3NO3

  • Molecular Weight : 289.25

PA 19 0481024

Ethyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate

Ethyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481024

  • CAS :

    1151240-91-3

  • Molecular Formula : C12H14F3NO2

  • Molecular Weight : 261.24

PA 19 0481025

(R)-3-(((S)-2-Amino-2-oxo-1-phenylethyl)amino)-4-(2,4,5-trifluorophenyl)butanoic acid

(R)-3-(((S)-2-Amino-2-oxo-1-phenylethyl)amino)-4-(2,4,5-trifluorophenyl)butanoic acid


  • Catalogue No.:PA 19 0481025

  • CAS :

    2114308-71-1

  • Molecular Formula : C18H17F3N2O3

  • Molecular Weight : 366.34

PA 19 0481026

(R)-3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,3,6-trifluorophenyl)butan-1-one

(R)-3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,3,6-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481026

  • CAS :

    945261-50-7

  • Molecular Formula : C16H15F6N5O

  • Molecular Weight : 407.32

PA 19 0481027

Ttert-butyl (R)-(4-(1H-imidazol-1-yl)-4-oxo-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate

Ttert-butyl (R)-(4-(1H-imidazol-1-yl)-4-oxo-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate


  • Catalogue No.:PA 19 0481027

  • CAS :

    1364122-90-6

  • Molecular Formula : C18H20F3N3O3

  • Molecular Weight : 383.37

PA 19 0481028

(Z)-Methyl 3-aMino-4-(2,4,5-trifluorophenyl)but-2-enoate

(Z)-Methyl 3-aMino-4-(2,4,5-trifluorophenyl)but-2-enoate


  • Catalogue No.:PA 19 0481028

  • CAS :

    881995-70-6

  • Molecular Formula : C11H10F3NO2

  • Molecular Weight : 245.2

PA 19 0481029

Ethyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate

Ethyl 3-oxo-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481029

  • CAS :

    1151240-88-8

  • Molecular Formula : C12H11F3O3

  • Molecular Weight : 260.21

PA 19 0481030

Benzenebutanoic acid, 2,4,5-trifluoro-b-oxo-

Benzenebutanoic acid, 2,4,5-trifluoro-b-oxo-


  • Catalogue No.:PA 19 0481030

  • CAS :

    1256815-03-8

  • Molecular Formula : C10H7F3O3

  • Molecular Weight : 232.16

PA 19 0481031

2,6,9,13-Tetraazatetradecanedioic acid, 5,10-dioxo-3,12-bis[(2,4,5-trifluorophenyl)methyl]-, 1,14-bis(1,1-dimethylethyl) ester, (3R,12R)-

2,6,9,13-Tetraazatetradecanedioic acid, 5,10-dioxo-3,12-bis[(2,4,5-trifluorophenyl)methyl]-, 1,14-bis(1,1-dimethylethyl) ester, (3R,12R)-


  • Catalogue No.:PA 19 0481031

  • CAS :

    1608492-11-0

  • Molecular Formula : C32H40F6N4O6

  • Molecular Weight : 690.68

PA 19 0481032

Ethyl (3R)-3-[(2-methylpropan-2-yl)oxycarbonylamino]-4-(2,4,5-trifluorophenyl)butanoate

Ethyl (3R)-3-[(2-methylpropan-2-yl)oxycarbonylamino]-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481032

  • CAS :

    1152439-74-1

  • Molecular Formula : C17H22F3NO4

  • Molecular Weight : 361.36

PA 19 0481033

(3R)-3-Amino-4-phenyl-1-(3-(trifluoromethyl)-5,6,8,8a-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-7(3H)-yl)butan-1-one

(3R)-3-Amino-4-phenyl-1-(3-(trifluoromethyl)-5,6,8,8a-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-7(3H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481033

  • CAS :

    NA

  • Molecular Formula : C16H20F3N5O

  • Molecular Weight : 355.37

PA 19 0481034

(3R)-3-Amino-1-(3-methyl-5,6,8,8a-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-7(3H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

(3R)-3-Amino-1-(3-methyl-5,6,8,8a-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazin-7(3H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481034

  • CAS :

    NA

  • Molecular Formula : C16H20F3N5O

  • Molecular Weight : 355.37

PA 19 0481035

3-Tert-Butoxycarbonylamino-4-(2,4-difluoro-phenyl)-butyric acid

3-Tert-Butoxycarbonylamino-4-(2,4-difluoro-phenyl)-butyric acid


  • Catalogue No.:PA 19 0481035

  • CAS :

    1824443-71-1

  • Molecular Formula : C15H19F2NO4

  • Molecular Weight : 315.32

PA 19 0481036

(R,Z)-3-((4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(3,4,5-trifluorophenyl)butan-2-yl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(3,4,5-trifluorophenyl)but-2-en-1-one

(R,Z)-3-((4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(3,4,5-trifluorophenyl)butan-2-yl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(3,4,5-trifluorophenyl)but-2-en-1-one


  • Catalogue No.:PA 19 0481036

  • CAS :

    NA

  • Molecular Formula : C32H25F12N9O2

  • Molecular Weight : 795.59

PA 19 0481038

(R)-3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,3,5-trifluorophenyl)butan-1-one

(R)-3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,3,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481038

  • CAS :

    945261-49-4

  • Molecular Formula : C16H15F6N5O

  • Molecular Weight : 407.32

PA 19 0481039

Methyl 2,4,6-trifluorobenzoate

Methyl 2,4,6-trifluorobenzoate


  • Catalogue No.:PA 19 0481039

  • CAS :

    79538-28-6

  • Molecular Formula : C8H5F3O2

  • Molecular Weight : 190.12

PA 19 0481040

Sitagliptin Tablets EP Impurity FP-A (Dilithium Salt)

Sitagliptin Tablets EP Impurity FP-A (Dilithium Salt)


  • Catalogue No.:PA 19 0481040

  • CAS :

    2303893-40-3

  • Molecular Formula : C20H19F6Li2N5O5

  • Molecular Weight : 537.27

PA 19 0481041

3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one acetate

3-Amino-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one acetate


  • Catalogue No.:PA 19 0481041

  • CAS :

    2137530-88-0

  • Molecular Formula : C18H19F6N5O3

  • Molecular Weight : 467.37

PA 19 0481042

(R)-3-(((S)-2-hydroxy-1-phenylethyl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

(R)-3-(((S)-2-hydroxy-1-phenylethyl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481042

  • CAS :

    1459759-18-2

  • Molecular Formula : C24H23F6N5O2

  • Molecular Weight : 527.47

PA 19 0481043

2-Methyl-5-(trifluoromethyl)-1,3,4-oxadiazole

2-Methyl-5-(trifluoromethyl)-1,3,4-oxadiazole


  • Catalogue No.:PA 19 0481043

  • CAS :

    1036648-53-9

  • Molecular Formula : C4H3F3N2O

  • Molecular Weight : 152.08

PA 19 0481044

(R,Z)-3-((1-phenylethyl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one

(R,Z)-3-((1-phenylethyl)amino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)but-2-en-1-one


  • Catalogue No.:PA 19 0481044

  • CAS :

    1169707-29-2

  • Molecular Formula : C24H21F6N5O

  • Molecular Weight : 509.46

PA 19 0481045

(R)-(4-oxo-4-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamic Acid

(R)-(4-oxo-4-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamic Acid


  • Catalogue No.:PA 19 0481045

  • CAS :

    NA

  • Molecular Formula : C17H15F6N5O3

  • Molecular Weight : 451.33

PA 19 0481046

N1,N2-bis((5-(Trifluoromethyl)-1,3,4-oxadiazol-2-yl)methyl)ethane-1,2-diamine

N1,N2-bis((5-(Trifluoromethyl)-1,3,4-oxadiazol-2-yl)methyl)ethane-1,2-diamine


  • Catalogue No.:PA 19 0481046

  • CAS :

    NA

  • Molecular Formula : C10H10F6N6O2

  • Molecular Weight : 360.22

PA 19 0481047

N-Nitroso Sitagliptin Impurity

N-Nitroso Sitagliptin Impurity


  • Catalogue No.:PA 19 0481047

  • CAS :

    2892260-32-9

  • Molecular Formula : C6H6F3N5O

  • Molecular Weight : 221.14

PA 19 0481048

3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic Acid

3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic Acid


  • Catalogue No.:PA 19 0481048

  • CAS :

    1620129-74-9

  • Molecular Formula : C15H18F3NO4

  • Molecular Weight : 333.31

PA 19 0481049

Sitagliptin Diamide Impurity

Sitagliptin Diamide Impurity


  • Catalogue No.:PA 19 0481049

  • CAS :

    NA

  • Molecular Formula : C20H19F6N5O3

  • Molecular Weight : 491.39

PA 19 0481050

1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

1-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481050

  • CAS :

    2409985-39-1

  • Molecular Formula : C16H14F6N4O

  • Molecular Weight : 392.31

PA 19 0481051

2,2,2-Trifluoro-N'-(piperazin-2-ylidene)acetohydrazide

2,2,2-Trifluoro-N'-(piperazin-2-ylidene)acetohydrazide


  • Catalogue No.:PA 19 0481051

  • CAS :

    764667-63-2

  • Molecular Formula : C6H9F3N4O

  • Molecular Weight : 210.16

PA 19 0481052

3-Amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one Hydrochloride

3-Amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one Hydrochloride


  • Catalogue No.:PA 19 0481052

  • CAS :

    NA

  • Molecular Formula : C16H17ClF5N5O

  • Molecular Weight : 425.79

PA 19 0481053

Glycolide

Glycolide


  • Catalogue No.:PA 19 0481053

  • CAS :

    502-97-6

  • Molecular Formula : C4H4O4

  • Molecular Weight : 116.07

PA 19 0481054

(R)-3-((R)-3-(Tert-butoxycarbonylamino)-4-(2,4,5-trifluorophenyl)butanamido)-4-(2,4,5-trifluorophenyl)butanoic Acid

(R)-3-((R)-3-(Tert-butoxycarbonylamino)-4-(2,4,5-trifluorophenyl)butanamido)-4-(2,4,5-trifluorophenyl)butanoic Acid


  • Catalogue No.:PA 19 0481054

  • CAS :

    2379621-81-3

  • Molecular Formula : C25H26F6N2O5

  • Molecular Weight : 548.48

PA 19 0481055

3-Amino-4-(2,5-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

3-Amino-4-(2,5-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481055

  • CAS :

    1334244-32-4

  • Molecular Formula : C16H16F5N5O

  • Molecular Weight : 389.33

PA 19 0481056

3-Amino-4-(2,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

3-Amino-4-(2,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481056

  • CAS :

    1334244-28-8

  • Molecular Formula : C16H16F5N5O

  • Molecular Weight : 389.33

PA 19 0481057

Tert-butyl (4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4] triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate

Tert-butyl (4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4] triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate


  • Catalogue No.:PA 19 0481057

  • CAS :

    1351498-23-1

  • Molecular Formula : C21H23F6N5O3

  • Molecular Weight : 507.44

PA 19 0481058

2-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)acetohydrazide

2-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)acetohydrazide


  • Catalogue No.:PA 19 0481058

  • CAS :

    1485732-85-1

  • Molecular Formula : C8H11F3N6O

  • Molecular Weight : 264.21

PA 19 0481059

4-(2,4,5-Trifluorobenzyl)azetidin-2-one

4-(2,4,5-Trifluorobenzyl)azetidin-2-one


  • Catalogue No.:PA 19 0481059

  • CAS :

    1512811-20-9

  • Molecular Formula : C10H8F3NO

  • Molecular Weight : 215.18

PA 19 0481060

3,4,5-Trifluoro-dl-phenylglycine

3,4,5-Trifluoro-dl-phenylglycine


  • Catalogue No.:PA 19 0481060

  • CAS :

    261952-27-6

  • Molecular Formula : C8H6F3NO2

  • Molecular Weight : 205.14

PA 19 0481061

Tert-Butyl ((R)-4-oxo-4-(((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)amino)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate

Tert-Butyl ((R)-4-oxo-4-(((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)amino)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate


  • Catalogue No.:PA 19 0481061

  • CAS :

    2088771-62-2

  • Molecular Formula : C31H31F9N6O4

  • Molecular Weight : 722.61

PA 19 0481062

(R)-3-Amino-4-(2-fluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

(R)-3-Amino-4-(2-fluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481062

  • CAS :

    945261-45-0

  • Molecular Formula : C16H17F4N5O

  • Molecular Weight : 371.34

PA 19 0481063

(R)-3-Amino-4-(2-chlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

(R)-3-Amino-4-(2-chlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481063

  • CAS :

    945261-56-3

  • Molecular Formula : C16H17ClF3N5O

  • Molecular Weight : 387.79

PA 19 0481064

(R)-3-Amino-4-(2,4-dichlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

(R)-3-Amino-4-(2,4-dichlorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481064

  • CAS :

    945261-60-9

  • Molecular Formula : C16H16Cl2F3N5O

  • Molecular Weight : 422.23

PA STI 089295

7-Nitroso-3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-5,5,6,6-d4

7-Nitroso-3-(trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-5,5,6,6-d4


  • Catalogue No.:PA STI 089295

  • CAS :

    NA

  • Molecular Formula : C6H2D4F3N5O

  • Molecular Weight : 225.17

PA 19 0481066

(R)-3-Amino-1-morpholino-4-(2,4,5-trifluorophenyl)butan-1-one

(R)-3-Amino-1-morpholino-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481066

  • CAS :

    2248445-08-9

  • Molecular Formula : C14H17F3N2O2

  • Molecular Weight : 302.3

PA 19 0481065

1-Morpholino-4-(2,4,5-trifluorophenyl)butane-1,3-dione

1-Morpholino-4-(2,4,5-trifluorophenyl)butane-1,3-dione


  • Catalogue No.:PA 19 0481065

  • CAS :

    2248445-00-1

  • Molecular Formula : C14H14F3NO3

  • Molecular Weight : 301.27

PA 19 0481067

(S)-3-Amino-4-(2,4,5-trifluorophenyl)butanoic Acid

(S)-3-Amino-4-(2,4,5-trifluorophenyl)butanoic Acid


  • Catalogue No.:PA 19 0481067

  • CAS :

    1217854-08-4

  • Molecular Formula : C10H10F3NO2

  • Molecular Weight : 233.19

PA 19 0481068

(R)-1-(4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)urea

(R)-1-(4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)urea


  • Catalogue No.:PA 19 0481068

  • CAS :

    NA

  • Molecular Formula : C17H16F6N6O2

  • Molecular Weight : 450.35

PA 19 0481069

1-(4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)urea

1-(4-Oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)urea


  • Catalogue No.:PA 19 0481069

  • CAS :

    NA

  • Molecular Formula : C17H16F6N6O2

  • Molecular Weight : 450.35

PAI 19 009021

Dimethyl ((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)aspartate

Dimethyl ((R)-4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-1-(2,4,5-trifluorophenyl)butan-2-yl)aspartate


  • Catalogue No.:PAI 19 009021

  • CAS :

    NA

  • Molecular Formula : C22H23F6N5O

  • Molecular Weight : 551.45

PAI 19 009022

Dimethyl Bromosuccinate

Dimethyl Bromosuccinate


  • Catalogue No.:PAI 19 009022

  • CAS :

    760-90-7

  • Molecular Formula : C6H9BrO4

  • Molecular Weight : 225.04

PA 19 0481070

Methyl 3-amino-4-(2,4,5-trifluorophenyl)butanoate hydrochloride

Methyl 3-amino-4-(2,4,5-trifluorophenyl)butanoate hydrochloride


  • Catalogue No.:PA 19 0481070

  • CAS :

    1909309-14-3

  • Molecular Formula : C11H13ClF3NO2

  • Molecular Weight : 283.68

PA 19 0481071

4-(2,5-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butane-1,3-dione

4-(2,5-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butane-1,3-dione


  • Catalogue No.:PA 19 0481071

  • CAS :

    764667-67-6

  • Molecular Formula : C16H13F5N4O2

  • Molecular Weight : 388.3

PA 19 0480011

Sitagliptin Phosphate Monohydrate - Impurity A (Hydrochloride Salt)

Sitagliptin S-Enantiomer Hydrochloride


  • Catalogue No.:PA 19 0480011

  • CAS :

    NA

  • Molecular Formula : C16H16ClF6N5O

  • Molecular Weight : 443.78

PA 19 0481072

3-Nitroso-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

3-Nitroso-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481072

  • CAS :

    NA

  • Molecular Formula : C16H13F6N5O2

  • Molecular Weight : 421.3

PA 19 0481073

(R)-3-Amino-4-(2,4,5-trifluorophenyl)butanamide

(R)-3-Amino-4-(2,4,5-trifluorophenyl)butanamide


  • Catalogue No.:PA 19 0481073

  • CAS :

    2137101-64-3

  • Molecular Formula : C10H11F3N2O

  • Molecular Weight : 232.21

PA 19 0481074

Isopropyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate

Isopropyl (R)-3-amino-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481074

  • CAS :

    1802495-69-7

  • Molecular Formula : C13H16F3NO2

  • Molecular Weight : 275.27

PA 19 0481075

3-Amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one

3-Amino-4-(3,4-difluorophenyl)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)butan-1-one


  • Catalogue No.:PA 19 0481075

  • CAS :

    1334244-24-4

  • Molecular Formula : C16H16F5N5O

  • Molecular Weight : 389.33

PAI 19 009023

3-(Dimethylamino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

3-(Dimethylamino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PAI 19 009023

  • CAS :

    2762634-30-8

  • Molecular Formula : C18H19F6N5O

  • Molecular Weight : 435.37

PA STI 089430

(2R,3R,5S,6S)-2-(Acetoxymethyl)-6-(4-chloro-3-(4-(ethoxy-d5)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl Triacetate

(2R,3R,5S,6S)-2-(Acetoxymethyl)-6-(4-chloro-3-(4-(ethoxy-d5)benzyl)phenyl)tetrahydro-2H-pyran-3,4,5-triyl Triacetate


  • Catalogue No.:PA STI 089430

  • CAS :

    2714487-81-5

  • Molecular Formula : C29H28D5ClO10

  • Molecular Weight : 582.05

PA STI 089491

2,2,2-Trifluoro-N'-(3,4,5,6-tetrahydropyrazin-2-yl-5,5,6,6-d4)acetohydrazide

2,2,2-Trifluoro-N'-(3,4,5,6-tetrahydropyrazin-2-yl-5,5,6,6-d4)acetohydrazide


  • Catalogue No.:PA STI 089491

  • CAS :

    1620233-73-9

  • Molecular Formula : C6H5D4F3N4O

  • Molecular Weight : 214.18

PA STI 089492

3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-5,5,6,6-d4 Hydrochloride

3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine-5,5,6,6-d4 Hydrochloride


  • Catalogue No.:PA STI 089492

  • CAS :

    NA

  • Molecular Formula : C6H4D4ClF3N4

  • Molecular Weight : 232.63

PA STI 089493

tert-Butyl (R)-(4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl-5,5,6,6-d4)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate

tert-Butyl (R)-(4-oxo-4-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl-5,5,6,6-d4)-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate


  • Catalogue No.:PA STI 089493

  • CAS :

    NA

  • Molecular Formula : C21H19D4F6N5O3

  • Molecular Weight : 511.46

PAI 19 009024

Methyl 3-((tert-butylsulfinyl)amino)-4-(2,4,5-trifluorophenyl)butanoate

Methyl 3-((tert-butylsulfinyl)amino)-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009024

  • CAS :

    NA

  • Molecular Formula : C15H20F3NO3S

  • Molecular Weight : 351.38

PAI 19 009025

Methyl 3-hydroxy-4-(2,4,5-trifluorophenyl)butanoate

Methyl 3-hydroxy-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009025

  • CAS :

    1253056-13-1

  • Molecular Formula : C11H11F3O3

  • Molecular Weight : 248.2

PA 19 0481076

1-(2,4,5-Trifluorophenyl)propan-2-amine Hydrochloride

1-(2,4,5-Trifluorophenyl)propan-2-amine Hydrochloride


  • Catalogue No.:PA 19 0481076

  • CAS :

    1062587-61-4

  • Molecular Formula : C9H11ClF3N

  • Molecular Weight : 225.64

PAI 19 009026

tert-Butyl 3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate

tert-Butyl 3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate


  • Catalogue No.:PAI 19 009026

  • CAS :

    877402-43-2

  • Molecular Formula : C11H15F3N4O2

  • Molecular Weight : 292.26

PAI 19 009027

tert-Butyl 8-oxo-3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate

tert-Butyl 8-oxo-3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazine-7(8H)-carboxylate


  • Catalogue No.:PAI 19 009027

  • CAS :

    877402-44-3

  • Molecular Formula : C11H13F3N4O3

  • Molecular Weight : 306.25

PAI 19 009028

Methyl 3-azido-4-(2,4,5-trifluorophenyl)butanoate

Methyl 3-azido-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009028

  • CAS :

    NA

  • Molecular Formula : C11H10F3N3O2

  • Molecular Weight : 273.22

PAI 19 009029

Methyl 3-(tosyloxy)-4-(2,4,5-trifluorophenyl)butanoate

Methyl 3-(tosyloxy)-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009029

  • CAS :

    NA

  • Molecular Formula : C18H17F3O5S

  • Molecular Weight : 402.38

PAI 19 009030

Methyl (Z)-3-(benzylimino)-4-(2,4,5-trifluorophenyl)butanoate

Methyl (Z)-3-(benzylimino)-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009030

  • CAS :

    NA

  • Molecular Formula : C18H16F3NO2

  • Molecular Weight : 335.33

PA 19 0481077

(R)-3-Amino-N-(2-(3-formyl-5-(trifluoromethyl)-4H-1,2,4-triazol-4-yl)ethyl)-4-(2,4,5-trifluorophenyl)butanamide

(R)-3-Amino-N-(2-(3-formyl-5-(trifluoromethyl)-4H-1,2,4-triazol-4-yl)ethyl)-4-(2,4,5-trifluorophenyl)butanamide


  • Catalogue No.:PA 19 0481077

  • CAS :

    2689015-85-6

  • Molecular Formula : C16H15F6N5O2

  • Molecular Weight : 423.32

PA 19 0481078

(E)-2,2,2-Trifluoro-N'-(1-nitrosopiperazin-2-ylidene)acetohydrazide

(E)-2,2,2-Trifluoro-N'-(1-nitrosopiperazin-2-ylidene)acetohydrazide


  • Catalogue No.:PA 19 0481078

  • CAS :

    NA

  • Molecular Formula : C6H8F3N5O2

  • Molecular Weight : 239.16

PA 19 0481079

(Z)-3-(Hydroxyimino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one

(Z)-3-(Hydroxyimino)-1-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-4-(2,4,5-trifluorophenyl)butan-1-one


  • Catalogue No.:PA 19 0481079

  • CAS :

    1253056-15-3

  • Molecular Formula : C16H13F6N5O2

  • Molecular Weight : 421.3

PA 19 0481080

N-Nitroso Sitagliptin Fumarate Adduct

N-Nitroso Sitagliptin Fumarate Adduct


  • Catalogue No.:PA 19 0481080

  • CAS :

    NA

  • Molecular Formula : C20H18F6N6O6

  • Molecular Weight : 552.39

PA 19 0481081

 Tert-butyl 3-amino-4-(2,4,5-trifluorophenyl)butanoate

Tert-butyl 3-amino-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481081

  • CAS :

    1964462-19-8

  • Molecular Formula : C14H18F3NO2

  • Molecular Weight : 289.3

PA 19 0481082

Tert-butyl (R)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate

Tert-butyl (R)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PA 19 0481082

  • CAS :

    1246961-45-4

  • Molecular Formula : C19H26F3NO4

  • Molecular Weight : 389.42

PAI 19 009031

Methyl (Z)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)but-2-enoate

Methyl (Z)-3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)but-2-enoate


  • Catalogue No.:PAI 19 009031

  • CAS :

    1234321-77-7

  • Molecular Formula : C16H18F3NO4

  • Molecular Weight : 345.32

PAI 19 009032

Methyl 3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate

Methyl 3-((tert-butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoate


  • Catalogue No.:PAI 19 009032

  • CAS :

    1151240-94-6

  • Molecular Formula : C16H20F3NO4

  • Molecular Weight : 347.33

PA 19 0481083

(E)-4-(2,4,5-Trifluorophenyl)but-3-enoic Acid

(E)-4-(2,4,5-Trifluorophenyl)but-3-enoic Acid


  • Catalogue No.:PA 19 0481083

  • CAS :

    2226094-64-8

  • Molecular Formula : C10H7F3O2

  • Molecular Weight : 216.16

PA 19 0481084

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,3,6-trifluorophenyl)butanoic acid

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,3,6-trifluorophenyl)butanoic acid


  • Catalogue No.:PA 19 0481084

  • CAS :

    611240-53-0

  • Molecular Formula : C15H18F3NO4

  • Molecular Weight : 333.31

PA 19 0481085

(Z)-3-Amino-1-morpholino-4-(2,4,5-trifluorophenyl)but-2-en-1-one

(Z)-3-Amino-1-morpholino-4-(2,4,5-trifluorophenyl)but-2-en-1-one


  • Catalogue No.:PA 19 0481085

  • CAS :

    NA

  • Molecular Formula : C14H15F3N2O2

  • Molecular Weight : 300.28

PA 19 0481086

(R)-(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic N,N'-dicyclohexylcarbamimidic anhydride

(R)-(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic N,N'-dicyclohexylcarbamimidic anhydride


  • Catalogue No.:PA 19 0481086

  • CAS :

    2072867-06-0

  • Molecular Formula : C28H40F3N3O4

  • Molecular Weight : 539.64

PA 19 0481087

(2R,3S)-2-((tert-Butoxycarbonyl)amino)-3-(3-fluoro-4-nitrophenyl)butanoic Acid

(2R,3S)-2-((tert-Butoxycarbonyl)amino)-3-(3-fluoro-4-nitrophenyl)butanoic Acid


  • Catalogue No.:PA 19 0481087

  • CAS :

    2467738-84-5

  • Molecular Formula : C15H19FN2O6

  • Molecular Weight : 342.32

PA 19 0481088

Sitagliptin Tablets EP Impurity FP-E (Sodium Salt)

Sitagliptin Tablets EP Impurity FP-E (Sodium Salt)


  • Catalogue No.:PA 19 0481088

  • CAS :

    NA

  • Molecular Formula : C10H9F3NNaO2

  • Molecular Weight : 255.17

PA 19 0481089

2-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-N'-(2-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)acetyl)acetohydrazide

2-(3-(Trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)-N'-(2-(3-(trifluoromethyl)-5,6-dihydro-[1,2,4]triazolo[4,3-a]pyrazin-7(8H)-yl)acetyl)acetohydrazide


  • Catalogue No.:PA 19 0481089

  • CAS :

    NA

  • Molecular Formula : C16H18F6N10O2

  • Molecular Weight : 496.38

PA 19 0481091

(Z)-2,2,2-Trifluoro-N'-(piperazin-2-ylidene)acetohydrazide

(Z)-2,2,2-Trifluoro-N'-(piperazin-2-ylidene)acetohydrazide


  • Catalogue No.:PA 19 0481091

  • CAS :

    763105-70-0

  • Molecular Formula : C6H9F3N4O

  • Molecular Weight : 210.16

PA 19 0481090

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic Acid Triethylamine Salt

(R)-3-((tert-Butoxycarbonyl)amino)-4-(2,4,5-trifluorophenyl)butanoic Acid Triethylamine Salt


  • Catalogue No.:PA 19 0481090

  • CAS :

    NA

  • Molecular Formula : C21H33F3N2O4

  • Molecular Weight : 434.50

PA 19 0481092

(S)-Sitagliptin N-Boc-Acid Impurity Triethylamine Salt

(S)-Sitagliptin N-Boc-Acid Impurity Triethylamine Salt


  • Catalogue No.:PA 19 0481092

  • CAS :

    NA

  • Molecular Formula : C21H33F3N2O4

  • Molecular Weight : 434.50

PA 19 0481093

N,N-Diisopropyl-3-oxo-4-(2,4,5-trifluorophenyl)butanamide

N,N-Diisopropyl-3-oxo-4-(2,4,5-trifluorophenyl)butanamide


  • Catalogue No.:PA 19 0481093

  • CAS :

    NA

  • Molecular Formula : C16H20F3NO2

  • Molecular Weight : 315.34

PA 19 0481094

(R)-10-(2,4,5-Trifluorobenzyl)-3-(trifluoromethyl)-5,6,9,10-tetrahydro-8H-[1,2,4]triazolo[3',4':3,4]pyrazino[1,2-a]pyrimidin-8-one

(R)-10-(2,4,5-Trifluorobenzyl)-3-(trifluoromethyl)-5,6,9,10-tetrahydro-8H-[1,2,4]triazolo[3',4':3,4]pyrazino[1,2-a]pyrimidin-8-one


  • Catalogue No.:PA 19 0481094

  • CAS :

    2821750-76-7

  • Molecular Formula : C16H11F6N5O

  • Molecular Weight : 403.29