5-(Dimethylamino)-2-methylphenyl dimethylcarbazate dihydrochloride Carbazic acid, dimethyl-, 5-(dimethylamino)-2-methylphenyl ester, dihydrochloride Carbazic acid, gamma,gamma'-dimethyl-, 5-dimethylamino-2-methylphenyl ester, dihydrochloride FE2504000 TL-1516