3-BUTENOYL CHLORIDE, 2,2,3,4,4-PENTACHLORO- 4-02-00-01497 (Beilstein Handbook Reference) 680-52-4 BRN 1709421 Pentachloro-3-butenoic acid chloride Pentachloro-3-butenoyl chloride Perchloro-3-butenoic acid chloride