Function

The product form of L-histidine is white powder crystals. It is an important amino acid API and a semi-essential amino acid for the human body. It is mainly used as a raw material for amino acid infusion and oral amino acid preparations. In addition, it is also an important drug for the treatment of heart disease, anemia, rheumatoid arthritis, peptic ulcers and substantial hepatitis, and its application in the medical field is becoming more and more extensive.

Application

1. It is an important component of amino acid infusion and comprehensive amino acid preparations. It is used in medicine to treat gastric ulcers, anemia, and allergies.

2. Used as pharmaceutical raw materials and food additives.

3. It is also one of the necessary raw materials for the synthesis of some pharmaceutical intermediates.

Specifications

Items	Specification
Appearance	White crystals or crystalline Powder
Assay	98.5-101.5%
Residue on ignition	≤0.3%
Chloride(Cl)	≤0.05%
Sulfate(SO4)	≤0.03%
lron(Fe)	≤30ppm
Organic lmpurities	Not more than 0.5% of any individual impurity is found;Not more than 2.0% of total impurities is found
Specific rotation [a]d25	+26.3°~+27.7°
Loss on drying	≤0.5%