Product Name: L-Cysteine The content of active substances: 98.5% Resource: Natural Nutrient Composition: Amino Acid Shelf Life: 24 Months Storage Method: Normal Packaging Material: Plastic EINECS: 200-158-2 Formula: C3h7no2s CAS No.: 52-90-4;4371-52-2 Transport Package: Carton, Drum Specification: 25Kg Origin: China HS Code: 2930909099 Product Description Product Name L-CysteineAlias L-Mercapto AlanineMolecular Formula C3H7NO2SMolecular Weight 121.15CAS No. 52-90-4;4371-52-2Shelf Life 2years Quality Standard AJI92Specification:Analytical ItemsStandardAppearanceWhite crystals or crystalline powderAssay98.0~101.0%pH value4.5~5.5Specific optical rotation[a]D20°+8.3o~ +9.5oState of solution (Transmittance)≥95.0%Loss on drying≤0.5%Residue on ignition≤0.1%Chloride (Cl)≤0.04%Sulfate (SO4)≤0.03%Ammonium(NH4)≤0.02%Iron (Fe)≤0.001%Heavy metals(Pb)≤0.001%Arsenic≤0.0001%Application: Mainly used in medicine, cosmetics, biochemical research and other aspects.Used in bread, to promote the formation of gluten and promote fermentation, mold, prevent aging.Used in natural juices to prevent vitamin C from oxidizing and to prevent the juices from turning brown.The product has a detoxification effect, can be used for acrylonitrile poisoning, aromatic acidosis.It is also used to prevent radiation damage to the body and is a drug for the treatment of bronchitis, especially as a expectorant (mostly in the form of acetyl l-cysteine methyl ester).Cosmetics mainly used for beauty water, perm fluid, sun - proof skin care cream.Packing:25kg/drumStorage:Store in tightly closed original container, protected from light, in a dry place.