2-Mercapto-5-methyl-1,3,4-thiadiazole;2,3-Dihydro-5-methyl-1,3,4-thiadiazole-2-thione;2-Methyl-1,3,4-thiadiazole-5(4H)-thione;MMTD 2-Methyl-5-mercapto-1,3,4-thiadiazole;2-Mercapto-5-Methyl-1;Cefazolin IMpurity E;2-Methyl-5-thio-1,3,4-thiadiazole;2-Mercapto-5-methyl-1,3,4-thiadiazole (MMTD);5-Methyl-1,3,4-thiadiazole-2-thiol;2-Mercapto-5-methyl Thiadiazole;5-Methyl-1,3,4-thiadiazol-2-thiol;5-METHYL-2,3-DIHYDRO-1,3,4-THIADIAZOLE-2-THIONE;5-methyl-3H-1,3,4-thiadiazole-2-thione;2-methyl-1,3,4-thiadiazole-5-thiol;2-thio-5-methyl-1,3,4-thiadiazole;5-methyl-1,3,4-thiadiazolyl-2-thiol;d2-1,3,4-Thiadiazoline-5-thione,2-methyl;1,3,4-Thiadiazole-2(3H)-thione