2,6-Dimethylphenyl isocyanide 2,6-Dimethylphenylisonitrile 2,6-Xyleneisonitrile 2,6-Xylyl isocyanide 2769-71-3 Benzene, 2-isocyano-1,3-dimethyl- (9CI) EINECS 220-459-2 NSC 141690