L-histidin CAS 71-00-1

Product name: L-Histidine Molecular Formula: C6H9N3O2 Molecular Weight: 155.16 CAS No.: 71-00-1 Description L-Histidine occurs as white crystals or as a crystalline powder. It is soluble in water, very slightly soluble in alcohol, and insoluble in ether. It melts with decomposition between about 277° and 288°. Application L-histidine is used as a nutritional fortifier and is an important component in amino acid infusion and complex amino acid preparations. It can be used to treat gastric ulcers, anemia, allergies, etc. Specification Appearance White or almost white crystalline powder or colorless crystals Appearance of solution Clear and not more intensely colored than reference solution BY7 Assay 98.5-101.0% Specific optical rotation +11.4°- +12.4° Ninhydrin-positive substances Any impurity ≤ 0.5% Chloride ≤0.02% Sulfate ≤0.03% Ammonium ≤0.02% Iron ≤ 10ppm Heavy metals ≤ 10ppm Loss on drying ≤0.5% Residue on ignition ≤0.1% Packing 25kg/drum or as per requirement. Storage Store in a cool dry place and protected from light.