assay
≥99.0% (T)
optical activity
[α]20/D +24.7±1°, c = 5% in 5 M HCl
impurities
≤0.3% foreign amino acids
ign. residue
≤0.1% (as SO4)
loss
≤0.1% loss on drying, 110 °C
mp
>300 °C (dec.) (lit.)
solubility
1 M HCl: soluble
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤300 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤500 mg/kg, Na: ≤500 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
N[C@@H](CC(O)=O)C(O)=O
InChI
1S/C4H7NO4/c5-2(4(8)9)1-3(6)7/h2H,1,5H2,(H,6,7)(H,8,9)/t2-/m0/s1
InChI key
CKLJMWTZIZZHCS-REOHCLBHSA-N
Biochem/physiol Actions
快速兴奋突触的主要神经递质。
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.
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存储类别
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves