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为白色结晶性粉末,无臭、呈酸性。不溶于冷水及乙醇、丙酮等有机溶剂,易溶于酸性和碱性水溶液。熔点为204～207℃。本品为半胱氨酸的巯基取代衍生物,为一新型有效的粘痰溶解剂,国外已广泛应用。与同类药物相比其特点有可口服,疗效高,见效快和不良反应小。国
White crystalline powder, odorless, acidic. Insoluble in cold water and ethanol, acetone and other organic solvents, soluble in acidic and alkaline aqueous solution. Melting point 204 ~ 207 ℃. This product is a mercapto-substituted derivatives of cysteine, a new and effective phlegm-dissolving agent, has been widely used abroad. Compared with similar drugs its characteristics are orally available, high efficacy, quick and adverse reactions small. country