Merck
All Photos(1)

W328502

Sigma-Aldrich

L-Glutamic acid

FCC

Synonym(s):
Glu, (S)-2-Aminopentanedioic acid
Linear Formula:
HO2CCH2CH2CH(NH2)CO2H
CAS Number:
Molecular Weight:
147.13
FEMA Number:
3285
Beilstein:
1723801
EC Number:
MDL number:
eCl@ss:
32160406
PubChem Substance ID:
NACRES:
NA.21

Quality Level

biological source

corn

grade

Kosher

reg. compliance

FCC
FDA 21 CFR 172.320
FDA 21 CFR 182.1045

assay

98.5-101.5% dry basis (perchloric acid titration)

form

powder or crystals

optical activity

[α]20/D +32°, c = 10 in 2 M HCl

mp

205 °C (dec.) (lit.)

solubility

water: soluble 8.64 g/L at 25 °C

density

1.54 g/cm3 at 20 °C

cation traces

As: ≤3 ppm
Cd: ≤1 ppm
Hg: ≤1 ppm
Pb: ≤5 ppm

application(s)

flavors and fragrances

food allergen

no known allergens

Organoleptic

baked

SMILES string

N[C@@H](CCC(O)=O)C(O)=O

InChI

1S/C5H9NO4/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H,7,8)(H,9,10)/t3-/m0/s1

InChI key

WHUUTDBJXJRKMK-VKHMYHEASA-N

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General description

L-Glutamic acid is an amino acid mainly used as a flavor enhancer in the food industry. It occurs naturally in kelp. L-Glutamic acid is said to impart umami-like taste in ready-to-drink (RTD) green tea.

Packaging

5, 10, 25 kg in fiber drum
1 kg in poly bottle

Biochem/physiol Actions

An excitatory amino acid neurotransmitter that is an agonist at all subtypes of glutamate receptors (metabotropic, kainate, NMDA, and AMPA).

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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