L-Cysteine Hydrochloride
L-Cysteine HCl
- CAS
- 52-89-1
- EC
- 200-157-7
- Food Code
- E920
- Sectors
- Food & Nutrition, Pharma & Healthcare, Personal Care & Cosmetics
L-Cysteine Hydrochloride (CAS 52-89-1) is a white, crystalline amino acid derivative that dissolves readily and acts as a reducing agent; it is supplied as a Food Grade solid carrying the food additive code E920, with use in flavor development, pharmaceuticals and hair care.
Typical Properties
| Molecular formula | C3H7NO2S.ClH |
|---|---|
| Molecular weight | 157.62 g/mol |
| Appearance | solid |
| Form | Solid |
| Color | White to light brown |
| Odor | odorless |
| Melting point | 179.3 °C |
| Water solubility | SOLUBLE |
| GHS signal word | Warning · Irritant / harmful |
| HS code | 29309099 |
| Grades available | Food Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
L-Cysteine Hydrochloride
Applications
Used in pharmaceuticals, food additives, and cosmetics. It serves in flavor development, hair care, and mucolytic formulations. Industrially, it acts as a stabilizer and precursor for peptides.
Safety & Risks
Stable and non-toxic; slightly hygroscopic—keep tightly sealed.
Packaging
Delivered in 25 kg PE-lined fiber drums or paper bags. Store cool, dry, and sealed.