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| Clinical data | |
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| Other names | Methyl L-cysteinate |
| AHFS/Drugs.com | International Drug Names |
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| ECHA InfoCard | 100.017.842 |
| Chemical and physical data | |
| Formula | C4H9NO2S |
| Molar mass | 135.18 g·mol−1 |
| 3D model (JSmol) | |
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Cysteine methyl ester is theorganic compound with the formula HSCH2CH(NH2)CO2CH3. It is a white solid substance, known as the methylester of theamino acid,cysteine.
Under the brand nameMecysteine, cysteine methyl ester is a commercial drug formucolytic activity.[1] The compound has an ability to break down or lower the viscosity of mucin-containing secretions or components of fluids by chronic and acute respiratory disorders. The drug is sold under the commercial names Delta in Paraguay, and Pectite and Zeotin in Japan.[2]
Cysteine methyl ester is also used as a building block for synthesis of N,S-heterocycles.[3][4]
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