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L-Aspartic acid

Catalog No. 11190 Name Sigma Aldrich
CAS Number 56-84-8 Website http://www.sigmaaldrich.com
M. F. C4H7NO4 Telephone 1-800-521-8956
M. W. 133.10268 Fax
Purity ≥99.0% (T) Email
Storage Chembase ID: 14

SYNONYMS

Title
L-天冬氨酸
IUPAC name
(2S)-2-aminobutanedioic acid
IUPAC Traditional name
L-aspartic acid
Synonyms
(S)-(+)-Aminosuccinic acid
(S)-Aminobutanedioic acid
(S)-氨基丁二酸
(S)-(+)-氨基琥珀酸

DATABASE IDS

MDL Number MFCD00002616
Beilstein Number 1723530
EC Number 200-291-6
CAS Number 56-84-8

PROPERTIES

Antion Traces chloride (Cl-): ≤50 mg/kg
Antion Traces sulfate (SO42-): ≤300 mg/kg
Cation Traces Ca: ≤10 mg/kg
Cation Traces Cd: ≤5 mg/kg
Cation Traces Co: ≤5 mg/kg
Cation Traces Cr: ≤5 mg/kg
Cation Traces Cu: ≤5 mg/kg
Cation Traces Fe: ≤5 mg/kg
Cation Traces K: ≤50 mg/kg
Cation Traces Mg: ≤5 mg/kg
Cation Traces Mn: ≤5 mg/kg
Cation Traces NH4+: ≤500 mg/kg
Cation Traces Na: ≤500 mg/kg
Cation Traces Ni: ≤5 mg/kg
Cation Traces Pb: ≤5 mg/kg
Cation Traces Zn: ≤5 mg/kg
Ignition Residue ≤0.1% (as SO4)
Impurities ≤0.3% foreign amino acids
Linear Formula HO2CCH2CH(NH2)CO2H
Loss on Drying ≤0.1% loss on drying, 110 °C
Purity ≥99.0% (T)
Melting Point >300 °C (dec.)(lit.)
Optical Rotation [α]20/D +24.7±1°, c = 5% in 5 M HCl
GHS Pictograms GHS07
GHS Signal Word Warning
GHS Hazard statements H319
European Hazard Symbols Irritant Irritant (Xi)
MSDS Link Download
Personal Protective Equipment dust mask type N95 (US), Eyeshields, Gloves
GHS Precautionary statements P305 + P351 + P338
Risk Statements 36
RTECS CI9098500
Safety Statements 26
German water hazard class 1

DETAILS

Description (English)
Biochem/physiol Actions
Principal neurotransmitter for fast synaptic excitation.
L-Aspartic acid is a negatively charged carboxyl side-chain containing α amino acid. Aspartic acid is involved in nitrogen metabolism via its inter-conversion to oxaloacetate (OAA). As one of the 22 proteinogenic amino acids L-Asp is incorporated into proteins by translation processes in vitro. L-Aspartic acid is a non-essential amino acid added to cell culture media. L-aspartate supports polyamine biosynthesis.
Description (简体中文)
Biochem/physiol Actions
快速突触兴奋的主要神经递质。
L-Aspartic acid is a negatively charged carboxyl side-chain containing α amino acid. Aspartic acid is involved in nitrogen metabolism via its inter-conversion to oxaloacetate (OAA). As one of the 22 proteinogenic amino acids L-Asp is incorporated into proteins by translation processes in vitro. L-Aspartic acid is a non-essential amino acid added to cell culture media. L-aspartate supports polyamine biosynthesis.

REFERENCES