tryptophan and its Impurities

Tryptophan is used in the biosynthesis of proteins. It is a precursor of serotonin. It can be a precursor to niacin, albeit inefficiently, in mammals.Reference standards of Tryptophan API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 94 results for tryptophan Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 20 62000

Tryptophan

Tryptophan

  • Catalogue No.:PA 20 62000

  • CAS :

    73-22-3

  • Molecular Formula : C11H12N2O2

  • Molecular Weight : 204.23

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PA 20 62010

Tryptophan - Impurity A

1,1'-Ethylidenebistryptophan

  • Catalogue No.:PA 20 62010

  • CAS :

    132685-02-0

  • Molecular Formula : C24H26N4O4

  • Molecular Weight : 434.49

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PA 20 62040

Tryptophan - Impurity D

5-Hydroxy L-Tryptophan

  • Catalogue No.:PA 20 62040

  • CAS :

    4350-09-8

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.22

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PA 20 62050

Tryptophan - Impurity E

N-Formylkynurenine

  • Catalogue No.:PA 20 62050

  • CAS :

    3978-11-8

  • Molecular Formula : C11H12N2O4

  • Molecular Weight : 236.22

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PA 20 62510

N-Acetyl-L-Tryptophan

N-Acetyl-L-Tryptophan

  • Catalogue No.:PA 20 62510

  • CAS :

    1218-34-4

  • Molecular Formula : C13H14N2O3

  • Molecular Weight : 246.26

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PA 20 62520

7-Methyl Tryptophol

7-Methyl Tryptophol

  • Catalogue No.:PA 20 62520

  • CAS :

    39232-85-4

  • Molecular Formula : C11H13NO

  • Molecular Weight : 175.23

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PA 20 62530

N-Acetyl 6-Chlorotryptophan

N-Acetyl 6-Chlorotryptophan

  • Catalogue No.:PA 20 62530

  • CAS :

    50517-10-7

  • Molecular Formula : C13H13ClN2O3

  • Molecular Weight : 280.71

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PA 20 62540

N-Acetyl-6-chloro-D-tryptophan

N-Acetyl-6-chloro-D-tryptophan

  • Catalogue No.:PA 20 62540

  • CAS :

    56777-76-5

  • Molecular Formula :  C13H13ClN2O3

  • Molecular Weight :  280.71

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PA 20 62550

4-Benzyloxyindole

4-Benzyloxyindole

  • Catalogue No.:PA 20 62550

  • CAS :

    20289-26-3

  • Molecular Formula : C15H13NO

  • Molecular Weight : 223.27

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PA 20 62560

6-Benzyloxyindole

6-Benzyloxyindole

  • Catalogue No.:PA 20 62560

  • CAS :

    15903-94-3

  • Molecular Formula : C15H13NO

  • Molecular Weight : 223.27

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PA 20 62570

7-Benzyloxyindole

7-Benzyloxyindole

  • Catalogue No.:PA 20 62570

  • CAS :

    20289-27-4

  • Molecular Formula : C15H13NO

  • Molecular Weight : 223.27

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PA 20 62580

5-Benzyloxyindole-3-carboxaldehyde

5-Benzyloxyindole-3-carboxaldehyde

  • Catalogue No.:PA 20 62580

  • CAS :

    6953-22-6

  • Molecular Formula : C16H13NO2

  • Molecular Weight : 251.28

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PA 20 62590

5-Benzyloxyindole

5-Benzyloxyindole

  • Catalogue No.:PA 20 62590

  • CAS :

    1215-59-4

  • Molecular Formula : C15H13NO

  • Molecular Weight : 223.27

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PA 20 62600

2-(6-Benzyloxyindolyl)acetonitrile

2-(6-Benzyloxyindolyl)acetonitrile

  • Catalogue No.:PA 20 62600

  • CAS :

    57765-24-9

  • Molecular Formula : C17H14N2O

  • Molecular Weight : 262.31

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PA 20 62610

4-Benzyloxyindole-3-acetonitrile

4-Benzyloxyindole-3-acetonitrile

  • Catalogue No.:PA 20 62610

  • CAS :

    1464-11-5

  • Molecular Formula : C17H14N2O

  • Molecular Weight : 262.31

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PA 20 62620

4-Benzyloxygramine

4-Benzyloxygramine

  • Catalogue No.:PA 20 62620

  • CAS :

    13523-95-0

  • Molecular Formula : C18H20N2O

  • Molecular Weight : 280.36

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PA 20 62630

6-Benzyloxygramine

6-Benzyloxygramine

  • Catalogue No.:PA 20 62630

  • CAS :

    57765-22-7

  • Molecular Formula : C18H20N2O

  • Molecular Weight : 280.36

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PA 20 62640

7-Benzyloxygramine

7-Benzyloxygramine

  • Catalogue No.:PA 20 62640

  • CAS :

    94067-27-3

  • Molecular Formula : C18N20N2O

  • Molecular Weight : 280.36

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PA 20 62650

2-(6-Benzyloxyindolyl)ethylamine Hemisulfate

2-(6-Benzyloxyindolyl)ethylamine Hemisulfate

  • Catalogue No.:PA 20 62650

  • CAS :

    1315588-70-5

  • Molecular Formula : C17H18N2O•1/2H2SO4

  • Molecular Weight : 315.38

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PA 20 62660

2-(4-Benzyloxy-indol-3-yl)ethanamine Hemisulfate Salt

2-(4-Benzyloxy-indol-3-yl)ethanamine Hemisulfate Salt

  • Catalogue No.:PA 20 62660

  • CAS :

    NA

  • Molecular Formula : C17H18N2O•1/2H2SO4

  • Molecular Weight : 315.38

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PA 20 62670

(7'-Benzyloxy-indolymethyl)formamido-malonic Diethyl Ester

(7'-Benzyloxy-indolymethyl)formamido-malonic Diethyl Ester

  • Catalogue No.:PA 20 62670

  • CAS :

    1076198-99-6

  • Molecular Formula : C24H26N2O6

  • Molecular Weight : 438.47

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PA 20 62680

5-Hydroxytryptoline

5-Hydroxytryptoline

  • Catalogue No.:PA 20 62680

  • CAS :

    23778-34-9

  • Molecular Formula : C11H12N2O

  • Molecular Weight : 188.23

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PA 20 62690

Indole-3-acetone

Indole-3-acetone

  • Catalogue No.:PA 20 62690

  • CAS :

    1201-26-9

  • Molecular Formula : C11H11NO

  • Molecular Weight : 173.21

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PA 20 62700

5-Methyl-DL-tryptophan

5-Methyl-DL-tryptophan

  • Catalogue No.:PA 20 62700

  • CAS :

    951-55-3

  • Molecular Formula : C12H14N2O2

  • Molecular Weight : 218.25

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PA 20 62720

DL-Tryptophan

DL-Tryptophan

  • Catalogue No.:PA 20 62720

  • CAS :

    54-12-6

  • Molecular Formula : C11H12N2O2

  • Molecular Weight : 204.23

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PA 20 62730

Indole-3-pyruvic Acid

Indole-3-pyruvic Acid

  • Catalogue No.:PA 20 62730

  • CAS :

    392-12-1

  • Molecular Formula : C11H9NO3

  • Molecular Weight : 203.19

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PA STI 048670

7-Hydroxy-1,2-dimethyl-9H-pyrido[3,4-b]indolium-d3 Iodide

7-Hydroxy-1,2-dimethyl-9H-pyrido[3,4-b]indolium-d3 Iodide

  • Catalogue No.:PA STI 048670

  • CAS :

    NA

  • Molecular Formula : C13H10D3IN2O

  • Molecular Weight : 343.18

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PA STI 053000

Indole-d6

Indole-d6

  • Catalogue No.:PA STI 053000

  • CAS :

    104959-27-5

  • Molecular Formula : C8HD6N

  • Molecular Weight : 123.18

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PA STI 052010

5-Hydroxy L-Tryptophan-d4 (Major)

5-Hydroxy L-Tryptophan-d4 (Major)

  • Catalogue No.:PA STI 052010

  • CAS :

    1246818-91-6

  • Molecular Formula : C11H8D4N2O3

  • Molecular Weight : 224.25

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PA STI 052020

5-Hydroxy Tryptophol-d4

5-Hydroxy Tryptophol-d4

  • Catalogue No.:PA STI 052020

  • CAS :

    66640-87-7

  • Molecular Formula : C10H7D4NO2

  • Molecular Weight : 181.22

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PA STI 052030

5-Hydroxy Tryptophol-d4 β-D-Glucuronide

5-Hydroxy Tryptophol-d4 β-D-Glucuronide

  • Catalogue No.:PA STI 052030

  • CAS :

    NA

  • Molecular Formula : C16H15D4NO8

  • Molecular Weight : 357.35

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PA STI 055330

rac Kynurenine-13C2,15N

rac Kynurenine-13C2,15N

  • Catalogue No.:PA STI 055330

  • CAS :

    1391051-69-6

  • Molecular Formula : C813C2H12N15NO3

  • Molecular Weight : 211.19

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PA STI 057710

2-(α-D-Mannopyranosyl)-L-tryptophan-d4

2-(α-D-Mannopyranosyl)-L-tryptophan-d4

  • Catalogue No.:PA STI 057710

  • CAS :

    NA

  • Molecular Formula : C17H18D4N2O7

  • Molecular Weight : 370.39

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PA STI 085960

D,L-Tryptophan-13C2,15N

D,L-Tryptophan-13C2,15N

  • Catalogue No.:PA STI 085960

  • CAS :

    1357002-80-2

  • Molecular Formula : C913C2H12N15NO2

  • Molecular Weight : 207.20

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PA STI 086030

D,L-Tryptophan-d3

D,L-Tryptophan-d3

  • Catalogue No.:PA STI 086030

  • CAS :

    340257-61-6

  • Molecular Formula : C11H9D3N2O2

  • Molecular Weight : 207.24

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PA STI 086040

D-Tryptophan-d5

D-Tryptophan-d5

  • Catalogue No.:PA STI 086040

  • CAS :

    1202359-57-6

  • Molecular Formula : C11H7D5N2O2

  • Molecular Weight : 209.26

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PA STI 086050

L-Tryptophan-d5

L-Tryptophan-d5

  • Catalogue No.:PA STI 086050

  • CAS :

    62595-11-3

  • Molecular Formula : C11H7D5N2O2

  • Molecular Weight : 209.26

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PA 20 62740

α-Methyltryptophan

α-Methyltryptophan

  • Catalogue No.:PA 20 62740

  • CAS :

    153-91-3

  • Molecular Formula : C12H14N2O2

  • Molecular Weight : 218.26

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PA 20 62750

5-Hydroxy-DL-tryptophan

5-Hydroxy-DL-tryptophan

  • Catalogue No.:PA 20 62750

  • CAS :

    56-69-9

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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PA EPE2205500

1,1'-Ethylidenebistryptophan (E2205500)

1,1'-Ethylidenebistryptophan (E2205500)

  • Catalogue No.:PA EPE2205500

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA EPT2610000

Tryptophan (T2610000)

Tryptophan (T2610000)

  • Catalogue No.:PA EPT2610000

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA USP1329913

5-Hydroxy-L-tryptophan (1329913)

5-Hydroxy-L-tryptophan (1329913)

  • Catalogue No.:PA USP1329913

  • CAS :

    4350-09-8

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA USP1700501

L-Tryptophan (1700501)

L-Tryptophan (1700501)

  • Catalogue No.:PA USP1700501

  • CAS :

    73-22-3

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA USP1700512

Tryptophan Related Compound A (1,1'-ethylidene-bis(L-tryptophan)) (1700512)

Tryptophan Related Compound A (1,1'-ethylidene-bis(L-tryptophan)) (1700512)

  • Catalogue No.:PA USP1700512

  • CAS :

    132685-02-0

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA USP1700523

Tryptophan Related Compound B (N-Acetyl-L-Tryptophan) (1700523)

Tryptophan Related Compound B (N-Acetyl-L-Tryptophan) (1700523)

  • Catalogue No.:PA USP1700523

  • CAS :

    1218-34-4

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA 20 62020

Tryptophan - Impurity B

Dioxyindolylalanine

  • Catalogue No.:PA 20 62020

  • CAS :

    184955-21-3

  • Molecular Formula : C11H12N2O4

  • Molecular Weight : 236.23

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PA 20 62030

Tryptophan - Impurity C

Kynurenine

  • Catalogue No.:PA 20 62030

  • CAS :

    2922-83-0

  • Molecular Formula : C10H12N2O3

  • Molecular Weight : 208.22

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PA 20 62060

Tryptophan - Impurity F

3-Phenylaminoalanine

  • Catalogue No.:PA 20 62060

  • CAS :

    145545-23-9

  • Molecular Formula : C9H12N2O2

  • Molecular Weight : 180.21

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PA 20 62070

Tryptophan - Impurity G

2-Hydroxytryptophan

  • Catalogue No.:PA 20 62070

  • CAS :

    21704-80-3

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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PA 20 62080

Tryptophan - Impurity H

(3RS)-1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid

  • Catalogue No.:PA 20 62080

  • CAS :

    6052-68-2

  • Molecular Formula : C12H12N2O2

  • Molecular Weight : 216.24

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PA 20 62090

Tryptophan - Impurity I

1-Methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid

  • Catalogue No.:PA 20 62090

  • CAS :

    5470-37-1

  • Molecular Formula : C13H14N2O2

  • Molecular Weight : 230.27

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PA 20 62100

Tryptophan - Impurity J

(2S)-2-Amino-3-[2-[2,3-dihydroxy-1-(1H-indol-3-yl)propyl]-1H-indol-3-yl]propanoic Acid

  • Catalogue No.:PA 20 62100

  • CAS :

    164068-19-3

  • Molecular Formula : C22H23N3O4

  • Molecular Weight : 393.44

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PA 20 62110

Tryptophan - Impurity K

(2S)-2-Amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic Acid

  • Catalogue No.:PA 20 62110

  • CAS :

    149724-31-2

  • Molecular Formula : C20H19N3O2

  • Molecular Weight : 333.39

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PA 20 62120

Tryptophan - Impurity L

1-(1H-Indol-3-ylmethyl)-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid

  • Catalogue No.:PA 20 62120

  • CAS :

    287170-99-4

  • Molecular Formula : C21H19N3O2

  • Molecular Weight : 345.40

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PA 20 62760

D-Tryptophan 1,1-Dimethylethyl Ester Hydrochloride

D-Tryptophan 1,1-Dimethylethyl Ester Hydrochloride

  • Catalogue No.:PA 20 62760

  • CAS :

    375792-97-5

  • Molecular Formula : C15H21ClN2O2

  • Molecular Weight : 296.79

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PA 20 62770

L-Tryptophan tert-Butyl Ester Hydrochloride

L-Tryptophan tert-Butyl Ester Hydrochloride

  • Catalogue No.:PA 20 62770

  • CAS :

    115692-31-4

  • Molecular Formula : C15H21ClN2O2

  • Molecular Weight : 296.79

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PA 20 62780

D-Tryptophan

D-Tryptophan

  • Catalogue No.:PA 20 62780

  • CAS :

    153-94-6

  • Molecular Formula : C11H12N2O2

  • Molecular Weight : 204.22

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PA 20 0621004

5-Fluoro D,L-Tryptophan Hydrochloride

5-Fluoro D,L-Tryptophan Hydrochloride

  • Catalogue No.:PA 20 0621004

  • CAS :

    1018815-80-9

  • Molecular Formula : C11H12ClFN2O2

  • Molecular Weight : 258.68

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PA 20 0621000

3α-Hydroxy-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic Acid

3α-Hydroxy-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic Acid

  • Catalogue No.:PA 20 0621000

  • CAS :

    35169-97-2

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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PA 20 0621001

Indolin-2-yl L-tryptophanate

Indolin-2-yl L-tryptophanate

  • Catalogue No.:PA 20 0621001

  • CAS :

    NA

  • Molecular Formula : C19H19N3O2

  • Molecular Weight : 321.38

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PA 20 0621002

(S)-2-Amino-3-(2-((S,E)-7-methylnon-1-en-1-yl)-1H-indol-3-yl)propanoic Acid

(S)-2-Amino-3-(2-((S,E)-7-methylnon-1-en-1-yl)-1H-indol-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621002

  • CAS :

    2151080-17-8

  • Molecular Formula : C21H30N2O2

  • Molecular Weight : 342.48

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PA 20 0621003

(S,E)-2-Amino-3-(2-(dec-1-en-1-yl)-1H-indol-3-yl)propanoic Acid

(S,E)-2-Amino-3-(2-(dec-1-en-1-yl)-1H-indol-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621003

  • CAS :

    2148919-25-7

  • Molecular Formula : C21H30N2O2

  • Molecular Weight : 342.48

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PA 20 0621005

3-Indolepropionic Acid

3-Indolepropionic Acid

  • Catalogue No.:PA 20 0621005

  • CAS :

    830-96-6

  • Molecular Formula : C11H11NO2

  • Molecular Weight : 189.21

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PA 20 0621010

N-(Ethoxycarbonyl)-α-methyl-L-tryptophan Methyl Ester

N-(Ethoxycarbonyl)-α-methyl-L-tryptophan Methyl Ester

  • Catalogue No.:PA 20 0621010

  • CAS :

    1798895-24-5

  • Molecular Formula : C16H20N2O4

  • Molecular Weight : 304.35

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PA 20 0621011

α-Methyl-D-tryptophan

α-Methyl-D-tryptophan

  • Catalogue No.:PA 20 0621011

  • CAS :

    56452-52-9

  • Molecular Formula : C12H14N2O2

  • Molecular Weight : 218.26

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PA 20 0621006

Indole-3-carboxaldehyde

Indole-3-carboxaldehyde

  • Catalogue No.:PA 20 0621006

  • CAS :

    487-89-8

  • Molecular Formula : C9H7NO

  • Molecular Weight : 145.16

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PA 20 0621007

Z-Trp-OH

Z-Trp-OH

  • Catalogue No.:PA 20 0621007

  • CAS :

    7432-21-5

  • Molecular Formula : C19H18N2O4

  • Molecular Weight : 338.36

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PA 20 0621008

5-Fluoroanthranilic Acid

5-Fluoroanthranilic Acid

  • Catalogue No.:PA 20 0621008

  • CAS :

    446-08-2

  • Molecular Formula : C7H6FNO2

  • Molecular Weight : 155.13

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PA 20 0621009

1-Methyl-D-tryptophan

1-Methyl-D-tryptophan

  • Catalogue No.:PA 20 0621009

  • CAS :

    110117-83-4

  • Molecular Formula : C12H14N2O2

  • Molecular Weight : 218.26

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PA 20 0621012

5-(2-Fluoroethoxy)-L-tryptophan

5-(2-Fluoroethoxy)-L-tryptophan

  • Catalogue No.:PA 20 0621012

  • CAS :

    1215091-03-4

  • Molecular Formula : C13H15FN2O3

  • Molecular Weight : 266.27

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PA 20 0621013

3-(2-Aminoethyl)-6-benzyloxyindole

3-(2-Aminoethyl)-6-benzyloxyindole

  • Catalogue No.:PA 20 0621013

  • CAS :

    31677-74-4

  • Molecular Formula : C17H18N2O

  • Molecular Weight : 266.34

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PA 20 0621014

Dimethyl 3,3'-(ethane-1,1-diylbis(1H-indole-1,3-diyl))(2R,2'R)-bis(2-aminopropanoate)

Dimethyl 3,3'-(ethane-1,1-diylbis(1H-indole-1,3-diyl))(2R,2'R)-bis(2-aminopropanoate)

  • Catalogue No.:PA 20 0621014

  • CAS :

    NA

  • Molecular Formula : C26H30N4O4

  • Molecular Weight : 462.55

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PA IPRST021

L-Tryptophan (IPRST021) - from IPC

L-Tryptophan (IPRST021) - from IPC

  • Catalogue No.:PA IPRST021

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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PA STI 089151

3-Indolepropionic-D2 Acid

3-Indolepropionic-D2 Acid

  • Catalogue No.:PA STI 089151

  • CAS :

    2469257-98-3

  • Molecular Formula : C11H9D2NO2

  • Molecular Weight : 191.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621015

1-Nitroso-L-tryptophan

1-Nitroso-L-tryptophan

  • Catalogue No.:PA 20 0621015

  • CAS :

    68807-89-6

  • Molecular Formula : C11H11N3O3

  • Molecular Weight : 233.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621016

1-Nitroso-D-tryptophan

1-Nitroso-D-tryptophan

  • Catalogue No.:PA 20 0621016

  • CAS :

    NA

  • Molecular Formula : C11H11N3O3

  • Molecular Weight : 233.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621017

Fmoc-L-Kynurenine

Fmoc-L-Kynurenine

  • Catalogue No.:PA 20 0621017

  • CAS :

    831210-89-0

  • Molecular Formula : C25H22N2O5

  • Molecular Weight : 430.46

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621018

5-Hydroxyindoleacetic Acid

5-Hydroxyindoleacetic Acid

  • Catalogue No.:PA 20 0621018

  • CAS :

    54-16-0

  • Molecular Formula : C10H9NO3

  • Molecular Weight : 191.19

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621019

Methyl 1-nitroso-D-tryptophanate

Methyl 1-nitroso-D-tryptophanate

  • Catalogue No.:PA 20 0621019

  • CAS :

    NA

  • Molecular Formula : C12H13N3O3

  • Molecular Weight : 247.25

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621020

N-Acetyl-N-nitroso-tryptophan

N-Acetyl-N-nitroso-tryptophan

  • Catalogue No.:PA 20 0621020

  • CAS :

    53602-74-7

  • Molecular Formula : C13H13N3O4

  • Molecular Weight : 275.26

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621021

Tryptophan Cyclized Impurity

Tryptophan Cyclized Impurity

  • Catalogue No.:PA 20 0621021

  • CAS :

    40856-80-2

  • Molecular Formula : C12H11N3O2

  • Molecular Weight : 229.24

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621022

N-Carbamoyl-D-tryptophan

N-Carbamoyl-D-tryptophan

  • Catalogue No.:PA 20 0621022

  • CAS :

    54896-75-2

  • Molecular Formula : C12H13N3O3

  • Molecular Weight : 247.25

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621023

7-Hydroxy-L-tryptophan

7-Hydroxy-L-tryptophan

  • Catalogue No.:PA 20 0621023

  • CAS :

    25198-02-1

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621024

6-Hydroxy-DL-tryptophan

6-Hydroxy-DL-tryptophan

  • Catalogue No.:PA 20 0621024

  • CAS :

    18749-30-9

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621025

4-Hydroxy-L-tryptophan

4-Hydroxy-L-tryptophan

  • Catalogue No.:PA 20 0621025

  • CAS :

    25242-90-4

  • Molecular Formula : C11H12N2O3

  • Molecular Weight : 220.23

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621026

Methyl L-tryptophanate Hydrochloride

Methyl L-tryptophanate Hydrochloride

  • Catalogue No.:PA 20 0621026

  • CAS :

    7524-52-9

  • Molecular Formula : C12H15ClN2O2

  • Molecular Weight : 254.71

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0620071

Tryptophan - Impurity G (Hydrochloride Salt)

2-Hydroxytryptophan Hydrochloride

  • Catalogue No.:PA 20 0620071

  • CAS :

    881025-90-7

  • Molecular Formula : C11H13ClN2O3

  • Molecular Weight : 256.69

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621027

5-Fluoro-D-tryptophan

5-Fluoro-D-tryptophan

  • Catalogue No.:PA 20 0621027

  • CAS :

    97749-24-1

  • Molecular Formula : C11H11FN2O2

  • Molecular Weight : 222.22

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Drug Reference Standards & Impurity Synthesis in India
PA BSC 06220587

4-Benzyloxyindole (BSC)

4-Benzyloxyindole

  • Catalogue No.:PA BSC 06220587

  • CAS :

    20289-26-3

  • Molecular Formula : C15H13NO

  • Molecular Weight : 223.27

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621028

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2H-indazol-3-yl)propanoic Acid

(S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2H-indazol-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621028

  • CAS :

    2305185-20-8

  • Molecular Formula : C25H21N3O4

  • Molecular Weight : 427.46

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621029

(S)-2-Amino-3-(1H-pyrrolo[2,3-c]pyridin-3-yl)propanoic Acid

(S)-2-Amino-3-(1H-pyrrolo[2,3-c]pyridin-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621029

  • CAS :

    149704-63-2

  • Molecular Formula : C10H11N3O2

  • Molecular Weight : 205.22

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621030

(S)-2-Amino-3-(1H-pyrrolo[3,2-b]pyridin-3-yl)propanoic Acid

(S)-2-Amino-3-(1H-pyrrolo[3,2-b]pyridin-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621030

  • CAS :

    149818-23-5

  • Molecular Formula : C10H11N3O2

  • Molecular Weight : 205.22

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621031

(2S)-2-Amino-3-(indolin-3-yl)propanoic Acid

(2S)-2-Amino-3-(indolin-3-yl)propanoic Acid

  • Catalogue No.:PA 20 0621031

  • CAS :

    674286-79-4

  • Molecular Formula : C11H14N2O2

  • Molecular Weight : 206.25

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0621032

(S)-2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic Acid

(S)-2-Amino-4-(2-amino-3-hydroxyphenyl)-4-oxobutanoic Acid

  • Catalogue No.:PA 20 0621032

  • CAS :

    606-14-4

  • Molecular Formula : C10H12N2O4

  • Molecular Weight : 224.22

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