The solubility of (alpha,Z)-2-amino-alpha-(methoxyimino)-4-thiazoleethanethioic acid S-2-benzothiazolyl ester in dichloromethane, acetonitrile, tetrahydrofuran, 1,2-dichloroethane, acetone, and binary mixtures of tetrahydrofuran + dichloromethane or 1,2-dichloroethane was measured using a laser monitoring observation technique. The temperature dependence of the solubility of the solute was estimated using the modified Apelblat equation based on the data presented in this work. The calculated solubilities show good agreement with the experimental values.