| Bioactivity | L-Cysteine methyl ester hydrochloride is an antitussive, and an expectorant agent, used to relieve breathing difficulties caused by mucus. |
| Name | L-Cysteine methyl ester hydrochloride |
| CAS | 18598-63-5 |
| Formula | C4H10ClNO2S |
| Molar Mass | 171.65 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |