1,3-Benzenedicarboxylic acid, 5-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)-, dimethyl ester 29920-31-8 Dimethyl 5-((1-(((2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino)carbonyl)-2-oxopropyl)azo)terephthalate EINECS 249-955-7