2,4,6-CYCLOHEPTATRIEN-1-ONE, 2-HYDROXY-5-(PHENYLAZO)-, METHACRYLATE (ESTER)- 2-Hydroxy-5-(phenylazo)-2,4,6-cycloheptatrien-1-one methacrylate 2-Propenoic acid, 2-methyl-, 7-oxo-4-(phenylazo)-1,3,5-cycloheptatrien-1-yl ester (9CI) 535-02-4 BRN 0960780 Methacrylic acid, ester with 2-hydroxy-5-(phenylazo)-2,4,6-cycloheptatrien-1-one NSC 82848