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76157

Sigma-Aldrich

(4R)-4-Hydroxy-L-glutamic acid

≥98.0% (TLC)

Synonym(s):

erythro-(4R)-4-Hydroxy-L-glutamic acid, H-(2S,4R)-γ-Hydroxy-Glu-OH

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About This Item

Empirical Formula (Hill Notation):
C5H9NO5
CAS Number:
2485-33-8
Molecular Weight:
163.13
Beilstein:
1725871
MDL number:
MFCD00672375
UNSPSC Code:
12352202
PubChem Substance ID:
329766558
NACRES:
NA.28

product name

(4R)-4-Hydroxy-L-glutamic acid, ≥98.0% (TLC)

Assay

≥98.0% (TLC)

form

powder

optical activity

[α]/D 20.5±1.5°, c = 1 in H2O

color

white

mp

171 °C

storage temp.

−20°C

SMILES string

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

InChI

1S/C5H9NO5/c6-2(4(8)9)1-3(7)5(10)11/h2-3,7H,1,6H2,(H,8,9)(H,10,11)/t2-,3+/m0/s1

InChI key

HBDWQSHEVMSFGY-STHAYSLISA-N

Biochem/physiol Actions

(4R)-4-Hydroxy-L-glutamic acid or (2S,4R)-4-hydroxyglutamate was shown to activate the metabotropic glutamate receptors, mGlu1a, mGlu2, and mGlu8a in a dose-dependent manner.
Substrate for aminotransferase; pharmacological characterization at human glutamate transporter subtypes 1-3; for studying structure-activity relationships (SAR) for ionotropic and metabotropic glutamate receptors.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

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Metabolism of gamma-hydroxyglutamic acid. I. Conversion to alpha-hydroxy-gamma-ketoglutarate by purified glutamic-aspartic transaminase to rat liver.
A GOLDSTONE et al.
The Journal of biological chemistry, 237, 3476-3485 (1962-11-01)
A S Bessis et al.
Bioorganic & medicinal chemistry letters, 11(12), 1569-1572 (2001-06-20)
The (2S,4R)- and (2S,4S)-4-hydroxyglutamates activate cloned mGlu(1a), mGlu(2), and mGlu(8a) receptors with different potencies. Best results were obtained with the (2S,4S) isomer being almost as potent as glutamate on mGlu(1a)R and mGlu(8a)R. Data are interpreted on the basis of the
Lennart Bunch et al.
ChemMedChem, 4(11), 1925-1929 (2009-09-05)
Subtype-selective ligands are of great interest to the scientific community, as they provide a tool for investigating the function of one receptor or transporter subtype when functioning in its native environment. Several 4-substituted (S)-glutamate (Glu) analogues were synthesized, and altogether
Sebastien Alaux et al.
Journal of medicinal chemistry, 48(25), 7980-7992 (2005-12-13)
A series of nine L-2,4-syn-4-alkylglutamic acid analogues (1a-i) were synthesized in high yield and high enantiomeric excess (>99% ee) from their corresponding 4-substituted ketoglutaric acids (2a-i), using the enzyme aspartate aminotransferase (AAT) from pig heart or E. coli. The synthesized

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