2,6-Dimethylchloroacetylquinoneimine 2-Chloro-N-(2,6-dimethyl-4-oxo-2,5-cyclohexadien-1-ylidene)acetamide 206439-03-4 Acetamide, 2-chloro-N-(2,6-dimethyl-4-oxo-2,5-cyclohexadien-1-ylidene)-