1,3,4-Thiadiazol-2-amine4005-51-0100 % similar 2-Aminothiazole96-50-435 % similar 2-Amino-5-methyl-1,3,4-thiadiazole108-33-831 % similar 2-Amino-5-mercapto-1,3,4-thiadiazole2349-67-931 % similar 2-Thiazolamine hydrochloride6142-05-831 % similar 1,3,4-Thiadiazole-2,5-diamine2937-81-730 % similar