L-Cysteine
Formula：C3H7NO2S
Molecular Weight：121.16
CAS ：52-90-4
Dissolved state：≥95.0％
Content：98.0％～101.5％
PH：4.5～5.5
Character：The cysteine crystallizes or the crystalline powder for the white, easy to dissolve in the water, micro has the smell, difficult to dissolve in the ethyl alcohol, does not dissolve in the ether and so on the organic solvent
usage：1．In cosmetics aspect: Uses in producing has a permanent wave the essence, the sun block lotion, the perfume, raises sends the essence and so on, this kind has a permanent wave high-level by the cysteine substitution sulfenyl ethanoic acid the essence, the cold permanent essence, has has a permanent wave easily, the hairstyle easy to maintain, but supple not chaotic and so on merits, but also may compound the sun block lotion and produce the perfume;
2．In medicine aspect: The cysteine mainly uses in the liver medicine, the antidote, medical drugs and so on expectorants
3．In food aspect: Bread fermentation promoter, antistaling agent