|Product name:||L-Cysteine Base|
|Molecular Formula: ||C3H7NO2S|
L-Cysteine is white crystal or crystalline powder. It is soluble in water, ethanol, acetic acid and ammonia, insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride. It can be oxidized to cystine by air in neutral and weakly alkaline solutions.
In the food industry, it can be used as a nutritional supplement, as well as a raw material for flavors and fragrances. In the daily chemical industry, it can also be used as a raw material for whitening cosmetics and hair dye preparations with no toxic side effects.
|Appearance||White crystal or crystalline powder|
|Identification ||In accordance with standard retention time|
|Specific rotation||+8.3°~ +9.5°|
|Transmittance ||Not less than 95.0%|
|Ammonium ||Not more than 0.02%|
|Sulfate||Not more than 0.03%|
|Heavy Metal||Not more than 10ppm|
|Iron||Not more than 10ppm|
|Arsenic||Not more than 1ppm|
|Other amino acids||Not detected|
|Loss on drying||Not more than 0.5%|
|Residue on ignition||Not more than 0.2%|
25kg/drum or as customer’s requirements.
Preserve in well-closed containers. Stored in cool, dry and ventilated warehouse, and keep away from moisture.