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Home/Compounds/Food Additive/Monosodium glutamate
C5H8NNaO4
169.11 g/mol
Food Additive

Monosodium DL-glutamate

CAS32221-81-1
Category
Food Additive
Compound Class
Organic Acid
Primary Use
flavor enhancer

Monosodium DL-glutamate is the sodium salt of glutamic acid, an alpha-amino acid used by all living organisms in protein biosynthesis. It is a non-essential nutrient for humans and serves as the most abundant excitatory neurotransmitter in the vertebrate nervous system.

flavor enhancerfood 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.

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Related Compounds

ApplicationSame Use

Disodium 5'-inosinate octahydrate

CAS20813-76-7

flavor enhancer

ApplicationSame Use

Uridine monophosphate disodium

CAS3387-36-8

flavor enhancer

ApplicationSame Use

Disodium 5'-inosinate

CAS4691-65-0

flavor enhancer

ReferenceSame Category

Sodium aspartate monohydrate

CAS323194-76-9

food additive and flavor enhancer

ReferenceSame Category

Glucuronolactone

CAS32449-92-6

food additive and energy supplement

ReferenceSame Category

Potassium propionate

CAS327-62-8

Food preservative

ReferenceSame Category

(1S,3R,4R,5R)-3-[3-(3,4-dihydroxyphenyl)prop-2-enoyloxy]-1,4,5-trihydroxy-cyclohexanecarboxylic acid

CAS327-97-9

food component and plant metabolite

Referencestereoisomer of

L-glutamic acid

CAS56-86-0

nutritional supplement and flavor enhancer

Customs Tariff Classification

The international HS code for Monosodium DL-glutamate (CAS 32221-81-1) is 2922.42.

HS code (international, 6-digit)

2922.42

EU CN code (8-digit)

2922 42 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

sodium 4-amino-5-hydroxy-5-oxopentanoate

InChIKey

LPUQAYUQRXPFSQ-UHFFFAOYSA-M

SMILES

C(CC(=O)[O-])C(C(=O)O)N.[Na+]

Synonyms (9)
  • Glutamic acid (sodium salt)
  • Monosodium DL-glutamate
  • dl-Monosodium glutamate
  • sodium 5-oxido-5-oxonorvaline

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