Also known as: L-hydrochloric acid cysteine ??monohydrate Product Description: White crystals or crystalline powder, sour taste, soluble in water, ethanol. 
 1, cysteine ??hydrochloride is soluble in water, made of injection or tablet can be quickly absorbed by the body. It is the main raw material of carboxymethyl cysteine ??and acetyl cysteine ??production. 
 2, in the clinical treatment of leukopenia, and due to the use of anticancer drugs and radioactive drugs caused leukopenia, as well as heavy metal poisoning antidote. In addition, for the treatment of toxic hepatitis, thrombocytopenia, skin ulcers, and prevention of liver necrosis, the treatment of bronchitis and phlegm role, propylene the Qinghe aromatic poisoning detoxification, the role of the prevention of radiation injury 
 , Bread improvers: to promote fermentation, to prevent oxidation. In foods as bread quick accelerator, to change the flavor of the bread and food. 
 Perm fine of cosmetics, sunscreen, can be used in cosmetics, the germinal perfume and hair conditioning agents, etc.. 
 5, nutritional supplements, antioxidants, color fixative: for natural fruit juices to prevent vitamin C oxidation and discoloration.