Cysteine methyl ester
Cysteine methyl ester is the organic compound with the formula HSCH2CHCO2CH3. It is a white solid substance, known as the methyl ester of the amino acid, cysteine.
Uses
Under the brand name Mecysteine, cysteine methyl ester is a commercial drug for mucolytic activity. 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.Cysteine methyl ester is also used as a building block for synthesis of N,S-heterocycles.