W328502 Sigma-Aldrich

L-Glutamic acid


Synonym: (S)-2-Aminopentanedioic acid, Glu

  • CAS Number 56-86-0

  • Linear Formula HO2CCH2CH2CH(NH2)CO2H

  • Molecular Weight 147.13

  •  FEMA Number 3285

  •  Beilstein/REAXYS Number 1723801

  •  EC Number 200-293-7

  •  MDL number MFCD00002634

  •  eCl@ss 32160406

  •  PubChem Substance ID 24901609

  •  NACRES NA.21



Related Categories Alphabetical Listings, Flavors and Fragrances, G-H, I-N, Kosher Certified Products More...
Quality Level   400
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
Organoleptic   baked
food allergen   no known allergens
storage temp.   room temp
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
Gene Information   human ... CCR2(1231), GRIA1(2890), GRIA2(2891), GRIA4(2893), GRIK1(2897), GRIK2(2898), GRIK3(2899), GRIK5(2901), GRIN2B(2904), GRM2(2912), SLC1A1(6505), SLC1A2(6506)
rat ... Gria1(50592), Grik1(29559), Grik2(54257), Grik4(24406), Grin2a(24409), Grm1(24414), Grm2(24415), Grm3(24416), Grm4(24417), Grm5(24418), Grm6(24419), Grm7(81672), Slc1a2(29482)


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.


1 kg in poly bottle

5, 10, 25 kg in fiber drum

Biochem/physiol Actions

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

Other Notes

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Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


Understanding the Complexities of Kosher Ingredients

Introduction What is Kosher Product Considerations for Kosher Certification Kosher's Added Benefit to the Food Industry Sigma-Aldrich's Kosher Experience and Offering
Dr. Luke Grocholl1, Rabbi Gershon Segal

1Dr. Luke Grocholl, Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Fermentation, Food & Beverage, Safety industry

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