2,2-Dichloroacetaldehyde (1,3,7-trimethyl-8-xanthinyl)hydrazone 73664-29-6 8-(2-(2,2-Dichloroethylidene)hydrazino)caffeine Acetaldehyde, dichloro-, (1,3,7-trimethyl-8-xanthinyl)hydrazone Acetaldehyde, dichloro-, (2,3,6,7-tetrahydro-1,3,7-trimethyl-2,6-dioxo-1H-purin-8-yl)hydrazone (9CI) Caffeine, 8-(2-(2,2-dichloroethylidene)hydrazino)- Dichloroacetaldehyde-8-caffeine-hydrazone NSC 62590