2,3-Dibromo-4,4-bis(4-ethylphenyl)-2-butenoic acid 2-Butenoic acid, 2,3-dibromo-4,4-bis(4-ethylphenyl)- 38273-00-6 Edikron gamma,gamma-Bis(4-ethylphenyl)-alpha,beta-dibromoisocrotonic acid