L-Cystine
Other Food Additives 2025-03-11
CAS No.56-89-3
L-Cystine Use：electronic、medicine、others
| Attribute | Details |
|---|---|
| Chemical Name | L-Cystine |
| Synonyms | L-Cysteine Disulfide, L-3.3′-Dithiobis(2-aminopropionic Acid), L-Β,Β-Dithiobisalanine, etc. |
| CAS Number | 56-89-3 |
| Formula | C6H12N2O4S2 |
| Molecular Weight | 240.30 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 260 °C |
| Solubility | Soluble in dilute acids and alkaline solutions, slightly soluble in water, insoluble in ethanol |
| Applications | Used in medicine as a raw material for antidotes and expectorants; as a dairy additive and bread accelerator in the food industry; as a raw material for cold wave lotion in the cosmetics industry; also used in biochemical and nutritional research |
| Biological Functions | Promotes cellular oxidation-reduction function, enhances liver function, neutralizes toxins, promotes leukocytosis, inhibits pathogen development |
| Occurrence | Naturally found in proteins, abundant in hair, nails, and keratin-rich tissues |
| Safety Information | Generally recognized as safe for intended uses; follow safety data sheet (SDS) guidelines for handling and disposal; acute toxicity LD50 in rats is 25 g/kg |
| Storage Conditions | Store in a cool, dry place, away from direct sunlight and incompatible materials |
