L-cysteine is an important substance with physiological functions and widely exists in nature. It is an amino acid used by tissues and cells to defend against harmful substances and increase vitality in animals and plants. It is also one of more than 20 amino acids that make up proteins, and it is the only amino acid with active sulfhydryl (- SH). It can be used as bread fermentation promoter and preservative; Accelerate the formation of gluten and prevent aging; Used in natural fruit juice to prevent oxidation and browning of VC; It has detoxification effect on acrylonitrile and aromatic acid poisoning; Prevention of radiation damage; Treatment of bronchitis and phlegm.
Cysteine hydrochloride; L-cysteine hydrochloride salt complex; Α- Amino group- Β- Mercaptopropionic acid hydrochloride; L-cysteine hydrochloride; Amino acids; L-anhydrous mercaptoalanine hydrochloride
Molecular formula: H-Cys-OH HCl
Molecular weight: 175.64
Properties: colorless to white crystalline or crystalline powder, with slight special smell and sour taste
Melting point: 175 ℃
Solubility: soluble in water, 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 can also be dissolved in alcohol, ammonia and acetic acid, but insoluble in ether, acetone, benzene, etc.
Stability: reductive, antioxidant and non enzymatic browning prevention.
Amino acid drugs, food additives, chemical intermediates, feed, fertilizer and other industries.