English name: DL-Aspartic acid; (±) -2-Aminosuccinic acid; DL-2-Aminobutanedioic acid; DL-Aminosuccinic acid; DL-2-Aminobutanedioic acid; DL-Aminosuccinic acid
Other names: DL-aspartic acid; DL-aspartic acid; DL-aminosuccinic acid; DL-2-aminosuccinic acid; DL-aspartic acid; DL-aminosuccinic acid
CAS number: 617-45-8
C4H7NO4 = 133.10
Level: BR
Content: ≥99.0%
Identification: qualified
PH: 2.7 ～ 3.3
Loss on drying: ≤0.20%
Sulphur ash: ≤0.10%
Ammonium salt: ≤100ppm
Chloride: ≤100ppm
Sulfate: ≤200ppm
Heavy metals: ≤10ppm
Arsenic salt: ≤1ppm
Iron salt: ≤3ppm
Asparagine: ≤0.10%
Nitrogen content: 10.4 ～ 10.6%
Properties: white crystalline powder. Slightly soluble in water, insoluble in ethanol and ether. The relative density (d12.512.5) is 1.6632. Melting point 338 ～ 339 ℃ (278 ～ 280 ℃)
Uses: Biochemical and medical clinical research. Microbial medium preservation: RT
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