1,3-Benzenedicarboxylic acid, dihydrazide 1,3-Phenylenebiscarbohydrazide 2760-98-7 Isophthalic acid dihydrazide Isophthalic acid hydrazide Isophthalic acid, dihydrazide Isophthalic dihydrazide Isophthalic hydrazide Isophthalyl dihydrazide NSC75606