2-Cyclopentyl-6,7-dichloro-2-methyl-1-oxo-5-indanyloxyacetic acid 54197-05-6 ACETIC ACID, 2-CYCLOPENTYL-6,7-DICHLORO-2-METHYL-1-OXO-5-INDANYLOXY- BRN 1893792 MK 473