1,3-Benzenedicarbonitrile, 5-(3,3-dimethyl-1-triazenyl)- 5-(3,3-Dimethyl-1-triazeno)isophthalonitrile 66974-82-1 BRN 1819457 ISOPHTHALONITRILE, 5-(3,3-DIMETHYL-1-TRIAZENO)-