C6H13N3O3
175.19 g/mol
Food AdditiveWarning
L-citrulline
CAS372-75-8EC206-759-6
Category
Food Additive
Compound Class
Natural Product
Primary Use
nutritional supplementation
L-Citrulline is a non-essential amino acid that plays a key role in the urea cycle, helping to remove ammonia from the body. It is commonly used as a nutritional supplement to support athletic performance and recovery.
nutritional supplementationtreating dietary shortage or imbalance
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.
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Related Compounds
StrongSame Parent
Citrulline malate
CAS54940-97-5
Anti-fatigue nutritional ingredient
StrongSame Parent
Citrulline malate
CAS70796-17-7
anti-fatigue compound
StrongStructure SimilarSimilarity 0.88
L-homocitrulline
CAS1190-49-4
research compound
ReferenceSame Category
Sucrapan S
CAS37318-31-3
Food emulsifier
ReferenceSame Category
Sodium L-aspartate
CAS3792-50-5
Flavor enhancer for umami taste
ReferenceSame Category
Brilliant blue FCF
CAS3844-45-9
Food colorant
ReferenceSame Category
Calcium dihydrogen di-L-aspartate
CAS39162-75-9
calcium supplement and acidity regulator
Referencestereoisomer of
D-citrulline
CAS13594-51-9
research compound
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
Customs Tariff Classification
The international HS code for L-citrulline (CAS 372-75-8) is 2924.19.
HS code (international, 6-digit)
2924.19
EU CN code (8-digit)
2924 19 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
(2S)-2-amino-5-(carbamoylamino)pentanoic acid
InChIKey
RHGKLRLOHDJJDR-BYPYZUCNSA-N
SMILES
C(C[C@@H](C(=O)O)N)CNC(=O)N
Synonyms (66)
- CIR
- (S)-2-Amino-5-Ureidopentanoic Acid; Arginine EP Impurity B
- L-Citrulline, United States Pharmacopeia (USP)
- 2-Amino-5-uredovalerate
- 2-Amino-5-uredovaleric acid
- 2-Amino-5-ureidovalerate
- 2-Amino-5-ureidovaleric acid
- A-amino-d-ureidovalerate
- A-amino-d-ureidovaleric acid
- Amino-ureidovalerate
- Amino-ureidovaleric acid
- CITRULLINE [MART.]
- Citrulline, L-
- Cytrulline
- H-cit-oh
- L-2-Amino-5-ureidovalerate
- L-Citruline
- L-Citrulline (DCF)
- L-Citrulline (Standard)
- L-Citrulline, 4
- L-Citrulline, >=98% (TLC)
- L-Cytrulline
- L-N5-carbamoyl-Ornithine
- L-citrullin
- L-citrulline
- N(delta)-Carbamylornithine
- N-carbamylornithine
- N5-(Aminocarbonyl)ornithine
- N5-Carbamoyl-L-ornithine
- N5-carbamoylornithine
- N5-carbamylornithine
- ND-carbamylornithine
- Ndelta-carbamy-ornithine
- Ngamma-carbamylornithine
- Ornithine, N5-carbamoyl-, L-
- Sitrulline
- Ureidonorvaline
- Ureidovalerate
- citrulline
- d-ureidonorvaline
- delta-Ureidonorvaline
- gammaureidonorvaline
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