L-Aspartic acid

• Catalog No.: 11190
• CAS Number: 56-84-8
• M. F.: C4H7NO4
• M. W.: 133.10268
• Purity: ≥99.0% (T)

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 Signal Word: Warning
• GHS Hazard statements: H319
• European Hazard Symbols: Irritant (Xi)
• 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.