L-Cysteine hydrochloride/HCL anhydrous (CAS 52-89-1) exists in colorless to white crystalline or crystalline powder, slightly sour with special smell, melting point 175 ℃ (decomposition). It is soluble in water, and the aqueous solution is acidic. The pH value of 1% solution is about 1.7, and the pH value of 0.1% solution is about 2.4. It is also soluble in alcohol, ammonia and acetic acid, but insoluble in ether, acetone, benzene, etc. It has the function of reducing, antioxidation and preventing non enzymatic browning.
Application
1. Cysteine hydrochloride is soluble in water and can be quickly absorbed by the human body when it is made into an injection or tablet. It is the main raw material for the production of carboxymethyl cysteine and acetylcysteine.
2. It can treat leukopenia, leukopenia caused by anti-cancer drugs and radioactive drugs, and antidote for heavy metal poisoning in clinic. In addition, it is also used to treat toxic hepatitis, thrombocytopenia, skin ulcers, prevent liver necrosis, treat tracheitis and resolve phlegm, detoxify acrylonitrile and aromatic poisoning, and prevent radiation damage
3. Bread improver: It can promote fermentation and prevent oxidation. In the aspect of food, it can change the flavor of bread and food as a quick accelerator of bread.
4. In cosmetics, it can be used for perm essence, sunscreen, hair perfume and hair conditioner, etc.
5. Nutritional supplements, antioxidants, color fixatives: used for natural fruit juice to prevent oxidation and color change of vitamin C.
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