ChemAbout
© 2026 ChemAbout
Insights|Privacy Policy|Terms of Service|[email protected]
Home/Compounds/Food Additive/Tryptophan
C11H12N2O2
204.22 g/mol
Food Additive

L-tryptophan

CAS73-22-3EC200-795-6
Category
Food Additive
Compound Class
Natural Product
Primary Use
nutritional supplement and dietary additive

L-tryptophan is an essential amino acid involved in protein biosynthesis. It serves as a metabolic precursor to key biomolecules such as serotonin, melatonin, and vitamin B3.

nutritional supplementdietary additive

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

Sourcing or supplying this compound?

List your inventory or post a purchase request

CAS 73-22-3

List This Product
Sign in to publish supply information
Request This Product
Submit a request without registering

Related Compounds

ApplicationSame Use

L-arginine

CAS74-79-3

nutritional supplement and dietary additive

ApplicationSame Use

L-histidine zwitterion

CAS71-00-1

nutritional supplement and dietary additive

ReferenceSame Category

L-isoleucine

CAS73-32-5

nutritional supplement and flavoring agent

ReferenceSame Category

D(+)-Isoascorbic acid sodium salt

CAS7378-23-6

Antioxidant food preservative

ReferenceSame Category

Aldehydo-N-acetyl-D-glucosamine

CAS7512-17-6

personal care ingredient

ReferenceSame Category

N-nitrosoproline

CAS7519-36-0

Nitrosamine reference standard

Referencestereoisomer of

DL-Tryptophan

CAS80206-30-0

essential amino acid

Referencestereoisomer of

D-Tryptophan-2,4,5,6,7-d5

CAS1202359-57-6

research compound

Identifiers
IUPAC Name

(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid

InChIKey

QIVBCDIJIAJPQS-VIFPVBQESA-N

SMILES

C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)O)N

Synonyms (102)
  • L-TTP
  • T-8320
  • L-Tryptophan, United States Pharmacopeia (USP)
  • L-Tryptophan, from non-animal source, meets EP, JP, USP testing specifications, suitable for cell culture, 99.0-101.0%
  • Tadalafil Impurity O; Tryptophan; N-Acetyltryptophan EP Impurity A
  • Tryptophan (USP/INN)
  • Tryptophan EP Impurity C-D4
  • Tryptophan, European Pharmacopoeia (EP)
  • (S)-1H-Indole-3-alanine
  • (S)-Tryptophan
  • 1-beta-3-Indolylalanine
  • 1H-Indole-3-alanine
  • 1H-Indole-3-alanine (VAN)
  • 1H-Indole-3-alanine, (S)-
  • 1qaw
  • 2-Amino-3-indolylpropanoate
  • 2a4m
  • 3-(1H-indol-3-yl)-L-Alanine
  • 3-Indol-3-ylalanine
  • 3-beta-Indolylalanine
  • Alanine, 3-indol-3-yl-
  • Ardeytropin
  • Gppe pdr sach
  • Kalma
  • L Tryptophan ratiopharm
  • L-Alanine, 3-(1H-indol-3-yl)-
  • L-Trp
  • L-Trp-OH
  • L-Tryptofan
  • L-Tryptophan (9CI)
  • L-Tryptophan (JP18)
  • L-Tryptophan (standard)
  • L-Tryptophan 7423
  • L-Tryptophan High
  • L-Tryptophan High 7424
  • L-Tryptophan, Vetec(TM)
  • L-Tryptophane
  • L-Trytophan
  • L-beta-3-Indolylalanine
  • L-tryptophan
  • Levotryptophan
  • Lyphan
  • N-ACETYLTRYPTOPHAN IMPURITY A
  • Naturruhe
  • Optimax wv
  • PMS Tryptophan
  • Pacitron
  • Sedanoct
  • TRYPTOPHAN [MART.]
  • Triptofano [Spanish]
  • Tryptan
  • Tryptophan ((-),l,s)
  • Tryptophan (H-3)
  • Tryptophan (L-Tryptophan)
  • Tryptophan (VAN)
  • Tryptophan CRS
  • Tryptophan, L-
  • Tryptophan, L- (8CI)
  • Tryptophane
  • Tryptophane [French]
  • Tryptophanum
  • Tryptophanum [Latin]
  • Trytophan-
  • h-Trp-oh
  • l-b-3-Indolylalanine
  • l-tryptophanum
  • ratio Tryptophan
  • triptofano
  • trofan
  • trp
  • tryptacin
  • tryptophan