D-Histidine /d-2-amino-3 - (4-imidazolyl) propionic acid

English name：D-Histidine；D-2-Amino-4(or 5)imidazolepropionic acid；(R)-2-Amino-3-(4-imidazolyl)propionic acid

Other names: d-2-amino-3 - (4-imidazolyl) propionic acid; D-Histidine; D-ganxaline-5-diosmic acid; D-ganxaline-5-alanine; D-tissue amino acid

CAS No.: 351-50-8

C6H9N3O2=155.16

Grade: br

Content: ≥ 99.0%

Specific rotation: -13.5 ~ -15.5 °

Chloride: ≤ 0.10%

Heavy metals: ≤ 10ppm

Arsenic salt: ≤ 2ppm

Loss on drying: ≤ 0.20%

Burning residue: ≤ 0.20%

Physicochemical properties: white or off white crystalline powder. Soluble in water, insoluble in ethanol, chloroform, ether and acetone. Melting point 287 ~ 288 ℃

Purpose: biochemical research

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