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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

Organoleptic

baked

application(s)

flavors and fragrances

food allergen

no known allergens

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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Related Categories

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

Certificate of Origin

Mechanistic studies on the formation of pyrazines by Maillard reaction between L-ascorbic acid and L-glutamic acid.
Yu AN, et al.
LWT--Food Science and Technology, 50(1), 64-71 (2013)
Luigi F Agnati et al.
Pharmacological reviews, 55(3), 509-550 (2003-07-19)
The molecular basis for the known intramembrane receptor/receptor interactions among G protein-coupled receptors was postulated to be heteromerization based on receptor subtype-specific interactions between different types of receptor homomers. The discovery of GABAB heterodimers started this field rapidly followed by
Ulrike Pannasch et al.
Nature neuroscience, 17(4), 549-558 (2014-03-04)
Astrocytes play active roles in brain physiology by dynamic interactions with neurons. Connexin 30, one of the two main astroglial gap-junction subunits, is thought to be involved in behavioral and basic cognitive processes. However, the underlying cellular and molecular mechanisms
Kimberly J Dougherty et al.
Neuron, 80(4), 920-933 (2013-11-26)
Locomotion is controlled by spinal networks that generate rhythm and coordinate left-right and flexor-extensor patterning. Defined populations of spinal interneurons have been linked to patterning circuits; however, neurons comprising the rhythm-generating kernel have remained elusive. Here, we identify an ipsilaterally
Nils Muhlert et al.
Journal of neurology, neurosurgery, and psychiatry, 85(8), 833-839 (2014-01-17)
Glutamate is the principal excitatory neurotransmitter and is involved in normal brain function. Cognitive impairment is common in multiple sclerosis (MS), and understanding its mechanisms is crucial for developing effective treatments. We used structural and metabolic brain imaging to test

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