Paliperidone-impurities | Pharmaffiliates

paliperidone and its Impurities

Paliperidone is used for the treatment of schizophrenia and schizoaffective disorder. It is sold under the brand name Invega. Reference standards of Paliperidone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 50 results for paliperidone Impurities
PA 16 02050

3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one

3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 02050

  • CAS :

    849903-79-3

  • Molecular Formula : C11H16N2O2

  • Molecular Weight : 208.26

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PA 16 02510

3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one Hydrochloride

3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one Hydrochloride


  • Catalogue No.:PA 16 02510

  • CAS :

    849727-64-6

  • Molecular Formula : C11H17ClN2O2

  • Molecular Weight : 244.72

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PA 16 02520

6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride

6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride


  • Catalogue No.:PA 16 02520

  • CAS :

    84163-13-3

  • Molecular Formula : C12H14ClFN2O

  • Molecular Weight : 256.7

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PA 16 02580

4-(2,4-Difluorobenzoyl)piperidine Oxime

4-(2,4-Difluorobenzoyl)piperidine Oxime


  • Catalogue No.:PA 16 02580

  • CAS :

    691007-05-3

  • Molecular Formula : C12H14F2N2O

  • Molecular Weight : 240.25

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PA 16 02590

(2,4Difluorophenyl)(piperidin-4-yl)methanone

(2,4Difluorophenyl)(piperidin-4-yl)methanone


  • Catalogue No.:PA 16 02590

  • CAS :

    84162-86-7

  • Molecular Formula : C12H13F2NO

  • Molecular Weight : 225.23

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PA 16 0021018

6-Fluoro-3-(1-nitrosopiperidin-4-yl)benzo[d]isoxazole

6-Fluoro-3-(1-nitrosopiperidin-4-yl)benzo[d]isoxazole


  • Catalogue No.:PA 16 0021018

  • CAS :

    2416230-38-9

  • Molecular Formula : C12H12FN3O2

  • Molecular Weight : 249.25

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PA 16 02000

Paliperidone - API Standards

Paliperidone


  • Catalogue No.:PA 16 02000

  • CAS :

    144598-75-4

  • Molecular Formula : C23H27FN4O3

  • Molecular Weight : 426.48

PA 16 02040

Paliperidone - Impurity D

Paliperidone Carboxylate Impurity


  • Catalogue No.:PA 16 02040

  • CAS :

    1006685-69-3

  • Molecular Formula : C24H27FN4O5

  • Molecular Weight : 470.49

PA 16 02060

Paliperidone - Impurity F

Defluoro Paliperidone


  • Catalogue No.:PA 16 02060

  • CAS :

    1380413-60-4

  • Molecular Formula : C23H28N4O3

  • Molecular Weight : 408.49

PA 16 02070

Paliperidone - Impurity G

Paliperidone E-oxime


  • Catalogue No.:PA 16 02070

  • CAS :

    1388021-46-2

  • Molecular Formula : C23H28F2N4O3

  • Molecular Weight : 446.49

PA 16 02080

Paliperidone - Impurity H

Paliperidone Z-Oxime


  • Catalogue No.:PA 16 02080

  • CAS :

    1388021-47-3

  • Molecular Formula : C23H28F2N4O3

  • Molecular Weight : 446.49

PA 16 02530

3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

3-(2-Chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 02530

  • CAS :

    130049-82-0

  • Molecular Formula : C11H15ClN2O2

  • Molecular Weight : 242.7

PA 16 02540

Paliperidone N-Oxide

Paliperidone N-Oxide


  • Catalogue No.:PA 16 02540

  • CAS :

    761460-08-6

  • Molecular Formula : C23H27FN4O4

  • Molecular Weight : 442.48

PA 16 02550

9-Keto Paliperidone

9-Keto Paliperidone


  • Catalogue No.:PA 16 02550

  • CAS :

    1189516-65-1

  • Molecular Formula : C23H25FN4O3

  • Molecular Weight : 424.47

PA 16 02560

Paliperidone 5-Fluoro Isomer

Paliperidone 5-Fluoro Isomer


  • Catalogue No.:PA 16 02560

  • CAS :

    1346598-34-2

  • Molecular Formula : C23H27FN4O3

  • Molecular Weight : 426.48

PA 16 02570

1-Acetyl-4-(2,4-difluorobenzoyl)piperidine

1-Acetyl-4-(2,4-difluorobenzoyl)piperidine


  • Catalogue No.:PA 16 02570

  • CAS :

    84162-82-3

  • Molecular Formula : C14H15F2NO2

  • Molecular Weight : 267.27

PA 16 02600

3-(2-(4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

3-(2-(4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 02600

  • CAS :

    152542-03-5

  • Molecular Formula : C23H28FN3O4

  • Molecular Weight : 429.48

PA 16 02610

6,7,8,9-Dehydro Paliperidone Dihydrochloride

6,7,8,9-Dehydro Paliperidone Dihydrochloride


  • Catalogue No.:PA 16 02610

  • CAS :

    170359-61-2

  • Molecular Formula : C23H25Cl2FN4O3

  • Molecular Weight : 495.37

PA 16 02620

3-(2-Chloroethyl)-9-hydroxy-2-methylpyrido[1,2-a]pyrimidin-4-one

3-(2-Chloroethyl)-9-hydroxy-2-methylpyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 02620

  • CAS :

    260273-82-3

  • Molecular Formula : C11H11ClN2O2

  • Molecular Weight : 238.67

PA STI 041960

5-Fluoro Paliperidone-d4

5-Fluoro Paliperidone-d4


  • Catalogue No.:PA STI 041960

  • CAS :

    1346602-73-0

  • Molecular Formula : C23H23D4FN4O3

  • Molecular Weight : 430.51

PA STI 071190

Paliperidone-d4

Paliperidone-d4


  • Catalogue No.:PA STI 071190

  • CAS :

    1020719-55-4

  • Molecular Formula : C23H23D4FN4O3

  • Molecular Weight : 430.51

PA 16 02630

9-O-Acetyl Paliperidone

9-O-Acetyl Paliperidone


  • Catalogue No.:PA 16 02630

  • CAS :

    130049-87-5

  • Molecular Formula : C25H29FN4O4

  • Molecular Weight : 468.53

PA 16 02640

9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

9-Hydroxy-3-(2-hydroxyethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 02640

  • CAS :

    1160915-55-8

  • Molecular Formula : C11H16N2O3

  • Molecular Weight : 224.26

Paliperidone Resolution Mixture (1491795)

Paliperidone Resolution Mixture (1491795)


  • Catalogue No.:PA USP1491795

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

Paliperidone (1491809)

Paliperidone (1491809)


  • Catalogue No.:PA USP1491809

  • CAS :

    144598-75-4

  • Molecular Formula : NA

  • Molecular Weight : NA

Paliperidone Related Compound A (3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-alpha] (1491818)

Paliperidone Related Compound A (3-Ethyl-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-alpha] (1491818)


  • Catalogue No.:PA USP1491818

  • CAS :

    849903-79-3

  • Molecular Formula : NA

  • Molecular Weight : NA

Paliperidone Related Compound B (6-fluoro-3-(piperidin-4-yl)benzoisoxazole hydrochloride) (1491820)

Paliperidone Related Compound B (6-fluoro-3-(piperidin-4-yl)benzoisoxazole hydrochloride) (1491820)


  • Catalogue No.:PA USP1491820

  • CAS :

    84163-13-3

  • Molecular Formula : NA

  • Molecular Weight : NA

Paliperidone Related Compound C (3-(2-Chloroethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[ (1491831)

Paliperidone Related Compound C (3-(2-Chloroethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[ (1491831)


  • Catalogue No.:PA USP1491831

  • CAS :

    130049-82-0

  • Molecular Formula : NA

  • Molecular Weight : NA

Paliperidone Related Compound D (3-{2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl) piperidin-1-yl]ethyl}-9-h (1491842)

Paliperidone Related Compound D (3-{2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl) piperidin-1-yl]ethyl}-9-h (1491842)


  • Catalogue No.:PA USP1491842

  • CAS :

    761460-08-6

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 16 02650

3-(2-Chloroethyl)-7,8-dihydro-2-methyl-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione

3-(2-Chloroethyl)-7,8-dihydro-2-methyl-4H-pyrido[1,2-a]pyrimidine-4,9(6H)-dione


  • Catalogue No.:PA 16 02650

  • CAS :

    1138463-56-5

  • Molecular Formula : C11H13ClN2O2

  • Molecular Weight : 240.69

PAI 16 022010

5-Fluoro-2-(imino(piperidin-4-yl)methyl)phenol

5-Fluoro-2-(imino(piperidin-4-yl)methyl)phenol


  • Catalogue No.:PAI 16 022010

  • CAS :

    NA

  • Molecular Formula : C12H15FN2O

  • Molecular Weight : 222.26

PAI 16 022020

(4-Fluoro-2-hydroxyphenyl)(piperidin-4-yl)methanone Hydrochloride

(4-Fluoro-2-hydroxyphenyl)(piperidin-4-yl)methanone Hydrochloride


  • Catalogue No.:PAI 16 022020

  • CAS :

    81043-50-7

  • Molecular Formula : C12H15ClFNO2

  • Molecular Weight : 259.71

PA 16 0021000

9-Hydroxy-2-methyl-3-vinyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

9-Hydroxy-2-methyl-3-vinyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021000

  • CAS :

    1008796-23-3

  • Molecular Formula : C11H14N2O2

  • Molecular Weight : 206.25

PA 16 0021001

9-Chloro-3-(2-chloroethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

9-Chloro-3-(2-chloroethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021001

  • CAS :

    NA

  • Molecular Formula : C11H10Cl2N2O

  • Molecular Weight : 257.11

PA 16 0021002

9-(Acetyloxy)-3-(2-chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

9-(Acetyloxy)-3-(2-chloroethyl)-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021002

  • CAS :

    1117803-76-5

  • Molecular Formula : C13H17ClN2O3

  • Molecular Weight : 284.74

PA 16 0021003

2-Desmethyl Paliperidone

2-Desmethyl Paliperidone


  • Catalogue No.:PA 16 0021003

  • CAS :

    1268058-08-7

  • Molecular Formula : C22H25FN4O3

  • Molecular Weight : 412.47

PA 16 0021004

6,7,8,9-Dehydro Paliperidone

6,7,8,9-Dehydro Paliperidone


  • Catalogue No.:PA 16 0021004

  • CAS :

    766485-15-8

  • Molecular Formula : C23H23FN4O3

  • Molecular Weight : 422.46

PA 16 0021005

2,4-Difluorobenzoyl Paliperidone

2,4-Difluorobenzoyl Paliperidone


  • Catalogue No.:PA 16 0021005

  • CAS :

    2640158-02-5

  • Molecular Formula : C23H27F2N3O3

  • Molecular Weight : 431.48

PA 16 0021006

6-Methyl Paliperidone

6-Methyl Paliperidone


  • Catalogue No.:PA 16 0021006

  • CAS :

    NA

  • Molecular Formula : C24H29FN4O3

  • Molecular Weight : 440.52

PA 16 0021007

3-(2-Chloroethyl)-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-9-yl Palmitate

3-(2-Chloroethyl)-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-9-yl Palmitate


  • Catalogue No.:PA 16 0021007

  • CAS :

    1415488-05-9

  • Molecular Formula : C27H45ClN2O3

  • Molecular Weight : 481.12

PA 16 0021008

3-(2-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-9-(2-oxopropyl)-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

3-(2-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-9-(2-oxopropyl)-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021008

  • CAS :

    NA

  • Molecular Formula : C26H31FN4O4

  • Molecular Weight : 482.56

PA 16 0021009

3-(2-(4-(4-Fluoro-2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)benzoyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

3-(2-(4-(4-Fluoro-2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)benzoyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021009

  • CAS :

    2379324-96-4

  • Molecular Formula : C35H39F2N5O4

  • Molecular Weight : 631.71

PA 16 0021010

(E)-3-(2-(4-((4-Fluoro-2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)phenyl)(hydroxyimino)methyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

(E)-3-(2-(4-((4-Fluoro-2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)phenyl)(hydroxyimino)methyl)piperidin-1-yl)ethyl)-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021010

  • CAS :

    NA

  • Molecular Formula : C35H40F2N6O4

  • Molecular Weight : 646.73

PA 16 0021011

Defluoro Paliperidone Palmitate

Defluoro Paliperidone Palmitate


  • Catalogue No.:PA 16 0021011

  • CAS :

    NA

  • Molecular Formula : C39H58N4O4

  • Molecular Weight : 646.92

PA 16 0021012

Paliperidone Resolution Mixture

Paliperidone Resolution Mixture


  • Catalogue No.:PA 16 0021012

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

PA 16 0021013

Tetradecanoic Acid 3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2a]pyrimidin-9-yl ester

Tetradecanoic Acid 3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2a]pyrimidin-9-yl ester


  • Catalogue No.:PA 16 0021013

  • CAS :

    1172995-11-7

  • Molecular Formula : C37H53FN4O4

  • Molecular Weight : 636.85

PA 16 0021014

Octadecanoic acid 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-9-yl ester

Octadecanoic acid 3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethyl]-6,7,8,9-tetrahydro-2-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-9-yl ester


  • Catalogue No.:PA 16 0021014

  • CAS :

    1172995-13-9

  • Molecular Formula : C41H61FN4O4

  • Molecular Weight : 692.96

PA 16 0021015

9-(Benzyloxy)-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one

9-(Benzyloxy)-3-(2-hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one


  • Catalogue No.:PA 16 0021015

  • CAS :

    1008796-22-2

  • Molecular Formula : C18H18N2O3

  • Molecular Weight : 310.35

PA 16 0021016

9-Hydroxyrisperidone pentadecanoate

9-Hydroxyrisperidone pentadecanoate


  • Catalogue No.:PA 16 0021016

  • CAS :

    1404053-61-7

  • Molecular Formula : C38H55FN4O4

  • Molecular Weight : 650.88

PA 16 0021017

3-(2-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-9-yl heptadecanoate

3-(2-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-9-yl heptadecanoate


  • Catalogue No.:PA 16 0021017

  • CAS :

    1404053-62-8

  • Molecular Formula : C40H59FN4O4

  • Molecular Weight : 678.93