| Melting point |
180°C |
| alpha |
5.5 º (c=8, 6 N HCL) |
| storage temp. |
Inert atmosphere,Room Temperature |
| solubility |
H2O: 1 M at 20 °C, clear, colorless |
| form |
Solid |
| color |
White to light brown |
| Odor |
odorless |
| biological source |
synthetic |
| optical activity |
[α]20/D +6.4±0.3°, c = 5% in 5 M HCl |
| Water Solubility |
SOLUBLE |
| Sensitive |
Hygroscopic |
| Merck |
14,2781 |
| BRN |
3560277 |
| Stability |
Stable, but light, moisture and air sensitive. Incompatible with strong oxidizing agents, some metals. |
| Cosmetics Ingredients Functions |
HAIR WAVING OR STRAIGHTENING REDUCING ANTIOXIDANT HAIR CONDITIONING |
| InChI |
1S/C3H7NO2S.ClH/c4-2(1-7)3(5)6;/h2,7H,1,4H2,(H,5,6);1H/t2-;/m0./s1 |
| InChIKey |
IFQSXNOEEPCSLW-DKWTVANSSA-N |
| SMILES |
Cl[H].N[C@@H](CS)C(O)=O |
| LogP |
0.235 (est) |
| CAS DataBase Reference |
52-89-1(CAS DataBase Reference) |
| NIST Chemistry Reference |
L-cysteine hydrochloride(52-89-1) |
| EPA Substance Registry System |
L-Cysteine hydrochloride (52-89-1) |