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.
Tryptophan
Catalogue No.:PA 20 62000
CAS :
Molecular Formula : C11H12N2O2
Molecular Weight : 204.23
1,1'-Ethylidenebistryptophan
Catalogue No.:PA 20 62010
Molecular Formula : C24H26N4O4
Molecular Weight : 434.49
5-Hydroxy L-Tryptophan
Catalogue No.:PA 20 62040
Molecular Formula : C11H12N2O3
Molecular Weight : 220.22
N-Formylkynurenine
Catalogue No.:PA 20 62050
Molecular Formula : C11H12N2O4
Molecular Weight : 236.22
N-Acetyl-L-Tryptophan
Catalogue No.:PA 20 62510
Molecular Formula : C13H14N2O3
Molecular Weight : 246.26
7-Methyl Tryptophol
Catalogue No.:PA 20 62520
Molecular Formula : C11H13NO
Molecular Weight : 175.23
N-Acetyl 6-Chlorotryptophan
Catalogue No.:PA 20 62530
Molecular Formula : C13H13ClN2O3
Molecular Weight : 280.71
N-Acetyl-6-chloro-D-tryptophan
Catalogue No.:PA 20 62540
4-Benzyloxyindole
Catalogue No.:PA 20 62550
Molecular Formula : C15H13NO
Molecular Weight : 223.27
6-Benzyloxyindole
Catalogue No.:PA 20 62560
7-Benzyloxyindole
Catalogue No.:PA 20 62570
5-Benzyloxyindole-3-carboxaldehyde
Catalogue No.:PA 20 62580
Molecular Formula : C16H13NO2
Molecular Weight : 251.28
5-Benzyloxyindole
Catalogue No.:PA 20 62590
2-(6-Benzyloxyindolyl)acetonitrile
Catalogue No.:PA 20 62600
Molecular Formula : C17H14N2O
Molecular Weight : 262.31
4-Benzyloxyindole-3-acetonitrile
Catalogue No.:PA 20 62610
4-Benzyloxygramine
Catalogue No.:PA 20 62620
Molecular Formula : C18H20N2O
Molecular Weight : 280.36
6-Benzyloxygramine
Catalogue No.:PA 20 62630
7-Benzyloxygramine
Catalogue No.:PA 20 62640
Molecular Formula : C18N20N2O
2-(6-Benzyloxyindolyl)ethylamine Hemisulfate
Catalogue No.:PA 20 62650
Molecular Formula : C17H18N2O•1/2H2SO4
Molecular Weight : 315.38
2-(4-Benzyloxy-indol-3-yl)ethanamine Hemisulfate Salt
Catalogue No.:PA 20 62660
(7'-Benzyloxy-indolymethyl)formamido-malonic Diethyl Ester
Catalogue No.:PA 20 62670
Molecular Formula : C24H26N2O6
Molecular Weight : 438.47
5-Hydroxytryptoline
Catalogue No.:PA 20 62680
Molecular Formula : C11H12N2O
Molecular Weight : 188.23
Indole-3-acetone
Catalogue No.:PA 20 62690
Molecular Formula : C11H11NO
Molecular Weight : 173.21
5-Methyl-DL-tryptophan
Catalogue No.:PA 20 62700
Molecular Formula : C12H14N2O2
Molecular Weight : 218.25
DL-Tryptophan
Catalogue No.:PA 20 62720
Indole-3-pyruvic Acid
Catalogue No.:PA 20 62730
Molecular Formula : C11H9NO3
Molecular Weight : 203.19
7-Hydroxy-1,2-dimethyl-9H-pyrido[3,4-b]indolium-d3 Iodide
Catalogue No.:PA STI 048670
Molecular Formula : C13H10D3IN2O
Molecular Weight : 343.18
Indole-d6
Catalogue No.:PA STI 053000
Molecular Formula : C8HD6N
Molecular Weight : 123.18
5-Hydroxy L-Tryptophan-d4 (Major)
Catalogue No.:PA STI 052010
Molecular Formula : C11H8D4N2O3
Molecular Weight : 224.25
5-Hydroxy Tryptophol-d4
Catalogue No.:PA STI 052020
Molecular Formula : C10H7D4NO2
Molecular Weight : 181.22
5-Hydroxy Tryptophol-d4 β-D-Glucuronide
Catalogue No.:PA STI 052030
Molecular Formula : C16H15D4NO8
Molecular Weight : 357.35
rac Kynurenine-13C2,15N
Catalogue No.:PA STI 055330
Molecular Formula : C813C2H12N15NO3
Molecular Weight : 211.19
2-(α-D-Mannopyranosyl)-L-tryptophan-d4
Catalogue No.:PA STI 057710
Molecular Formula : C17H18D4N2O7
Molecular Weight : 370.39
D,L-Tryptophan-13C2,15N
Catalogue No.:PA STI 085960
Molecular Formula : C913C2H12N15NO2
Molecular Weight : 207.20
D,L-Tryptophan-d3
Catalogue No.:PA STI 086030
Molecular Formula : C11H9D3N2O2
Molecular Weight : 207.24
D-Tryptophan-d5
Catalogue No.:PA STI 086040
Molecular Formula : C11H7D5N2O2
Molecular Weight : 209.26
L-Tryptophan-d5
Catalogue No.:PA STI 086050
α-Methyltryptophan
Catalogue No.:PA 20 62740
Molecular Weight : 218.26
5-Hydroxy-DL-tryptophan
Catalogue No.:PA 20 62750
Molecular Weight : 220.23
1,1'-Ethylidenebistryptophan (E2205500)
Catalogue No.:PA EPE2205500
Molecular Formula : NA
Molecular Weight : NA
Tryptophan (T2610000)
Catalogue No.:PA EPT2610000
5-Hydroxy-L-tryptophan (1329913)
Catalogue No.:PA USP1329913
Catalogue No.:PA USP1700501
Molecular Formula :
Catalogue No.:PA USP1700512
Catalogue No.:PA USP1700523
Dioxyindolylalanine
Catalogue No.:PA 20 62020
Molecular Weight : 236.23
Kynurenine
Catalogue No.:PA 20 62030
Molecular Formula : C10H12N2O3
Molecular Weight : 208.22
3-Phenylaminoalanine
Catalogue No.:PA 20 62060
Molecular Formula : C9H12N2O2
Molecular Weight : 180.21
2-Hydroxytryptophan
Catalogue No.:PA 20 62070
(3RS)-1,2,3,4-Tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid
Catalogue No.:PA 20 62080
Molecular Formula : C12H12N2O2
Molecular Weight : 216.24
1-Methyl-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid
Catalogue No.:PA 20 62090
Molecular Formula : C13H14N2O2
Molecular Weight : 230.27
(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
Molecular Formula : C22H23N3O4
Molecular Weight : 393.44
(2S)-2-Amino-3-[2-(1H-indol-3-ylmethyl)-1H-indol-3-yl]propanoic Acid
Catalogue No.:PA 20 62110
Molecular Formula : C20H19N3O2
Molecular Weight : 333.39
1-(1H-Indol-3-ylmethyl)-1,2,3,4-tetrahydro-9H-pyrido[3,4-b]indole-3-carboxylic Acid
Catalogue No.:PA 20 62120
Molecular Formula : C21H19N3O2
Molecular Weight : 345.40
D-Tryptophan 1,1-Dimethylethyl Ester Hydrochloride
Catalogue No.:PA 20 62760
Molecular Formula : C15H21ClN2O2
Molecular Weight : 296.79
L-Tryptophan tert-Butyl Ester Hydrochloride
Catalogue No.:PA 20 62770
D-Tryptophan
Catalogue No.:PA 20 62780
Molecular Weight : 204.22
5-Fluoro D,L-Tryptophan Hydrochloride
Catalogue No.:PA 20 0621004
Molecular Formula : C11H12ClFN2O2
Molecular Weight : 258.68
3α-Hydroxy-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic Acid
Catalogue No.:PA 20 0621000
Indolin-2-yl L-tryptophanate
Catalogue No.:PA 20 0621001
Molecular Formula : C19H19N3O2
Molecular Weight : 321.38
(S)-2-Amino-3-(2-((S,E)-7-methylnon-1-en-1-yl)-1H-indol-3-yl)propanoic Acid
Catalogue No.:PA 20 0621002
Molecular Formula : C21H30N2O2
Molecular Weight : 342.48
(S,E)-2-Amino-3-(2-(dec-1-en-1-yl)-1H-indol-3-yl)propanoic Acid
Catalogue No.:PA 20 0621003
3-Indolepropionic Acid
Catalogue No.:PA 20 0621005
Molecular Formula : C11H11NO2
Molecular Weight : 189.21
N-(Ethoxycarbonyl)-α-methyl-L-tryptophan Methyl Ester
Catalogue No.:PA 20 0621010
Molecular Formula : C16H20N2O4
Molecular Weight : 304.35
α-Methyl-D-tryptophan
Catalogue No.:PA 20 0621011
Indole-3-carboxaldehyde
Catalogue No.:PA 20 0621006
Molecular Formula : C9H7NO
Molecular Weight : 145.16
Z-Trp-OH
Catalogue No.:PA 20 0621007
Molecular Formula : C19H18N2O4
Molecular Weight : 338.36
5-Fluoroanthranilic Acid
Catalogue No.:PA 20 0621008
Molecular Formula : C7H6FNO2
Molecular Weight : 155.13
1-Methyl-D-tryptophan
Catalogue No.:PA 20 0621009
5-(2-Fluoroethoxy)-L-tryptophan
Catalogue No.:PA 20 0621012
Molecular Formula : C13H15FN2O3
Molecular Weight : 266.27
3-(2-Aminoethyl)-6-benzyloxyindole
Catalogue No.:PA 20 0621013
Molecular Formula : C17H18N2O
Molecular Weight : 266.34
Dimethyl 3,3'-(ethane-1,1-diylbis(1H-indole-1,3-diyl))(2R,2'R)-bis(2-aminopropanoate)
Catalogue No.:PA 20 0621014
Molecular Formula : C26H30N4O4
Molecular Weight : 462.55
L-Tryptophan (IPRST021) - from IPC
Catalogue No.:PA IPRST021
3-Indolepropionic-D2 Acid
Catalogue No.:PA STI 089151
Molecular Formula : C11H9D2NO2
Molecular Weight : 191.23
1-Nitroso-L-tryptophan
Catalogue No.:PA 20 0621015
Molecular Formula : C11H11N3O3
Molecular Weight : 233.23
1-Nitroso-D-tryptophan
Catalogue No.:PA 20 0621016
Fmoc-L-Kynurenine
Catalogue No.:PA 20 0621017
Molecular Formula : C25H22N2O5
Molecular Weight : 430.46
5-Hydroxyindoleacetic Acid
Catalogue No.:PA 20 0621018
Molecular Formula : C10H9NO3
Molecular Weight : 191.19
Methyl 1-nitroso-D-tryptophanate
Catalogue No.:PA 20 0621019
Molecular Formula : C12H13N3O3
Molecular Weight : 247.25
N-Acetyl-N-nitroso-tryptophan
Catalogue No.:PA 20 0621020
Molecular Formula : C13H13N3O4
Molecular Weight : 275.26
Tryptophan Cyclized Impurity
Catalogue No.:PA 20 0621021
Molecular Formula : C12H11N3O2
Molecular Weight : 229.24
N-Carbamoyl-D-tryptophan
Catalogue No.:PA 20 0621022
7-Hydroxy-L-tryptophan
Catalogue No.:PA 20 0621023
6-Hydroxy-DL-tryptophan
Catalogue No.:PA 20 0621024
4-Hydroxy-L-tryptophan
Catalogue No.:PA 20 0621025
Methyl L-tryptophanate Hydrochloride
Catalogue No.:PA 20 0621026
Molecular Formula : C12H15ClN2O2
Molecular Weight : 254.71
2-Hydroxytryptophan Hydrochloride
Catalogue No.:PA 20 0620071
Molecular Formula : C11H13ClN2O3
Molecular Weight : 256.69
5-Fluoro-D-tryptophan
Catalogue No.:PA 20 0621027
Molecular Formula : C11H11FN2O2
Molecular Weight : 222.22
Catalogue No.:PA BSC 06220587
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