Product Name：L-Histidine
CAS No.：71-00-1
Appearance：White powder
MF：C6H9N3O2
Purity：99% min l-histidine
Keywords：l-histidine，DL-Histidine，l-histidine powder
Storage：Keep in a cool, dry, dark location in a tightly sealed container or cylinder.
Shelf Life：24 Months
Achromatic acicular or flake crystals, softened at 277℃ and decomposed at 287℃.At 25℃, the solubility in water is 41.9g/L, very slightly soluble in alcohol, insoluble in ether and chloroform.Sweet taste.
Product Application:
From the blood of pigs and cows.Pig blood is prepared by spray drying with about 18kg of blood powder per 100kg of pig blood. L-histidine is commonly used in its hydrochloride ([7048-02-4]).The eluent containing l-histidine was concentrated until it crystallized. When hot, hydrochloric acid was used to adjust the pH to 2.5. Ethanol twice the amount of solution was immediately added, and the crude l-histidine hydrochloride was obtained by standing, precipitation and filtration.L-histidine can also be extracted from the hydrolysates of defatted soybean.
Histidine is also one of the necessary raw materials for the synthesis of some intermediates, such as ghk-cu.It is now known that major metabolic pathways in organisms include deamination by histidine deaminase, formation of histamine by decarboxylase, and amino transfer reactions.Biosynthesis is from adenine part of ATP and phosphoribose phosphate to form imidazole glycerophosphate for amino conversion reaction.