4-(2-(5-Methylthienyl)keto)-2,3-dichlorophenoxyacetic acid 55901-70-7 ACETIC ACID, (2,3-DICHLORO-4-(5-METHYL-2-THENOYL)PHENOXY)- Acetic acid, (2,3-dichloro-4-((5-methyl-2-thienyl)carbonyl)phenoxy)- BRN 1262129 CE 3649