28479-22-3 3-Chloro-4-methylphenyl isocyanate 3-Chloro-4-methylphenyl isocyanate [UN2236] [Poison] 3-Chloro-p-tolyl isocyanate Benzene, 2-chloro-4-isocyanato-1-methyl- EINECS 249-050-7 UN2236