1,3-Cyclopentanedicarboxylic acid, 1,2,2-trimethyl-, 1-(1-(4-methylphenyl)ethyl) ester 1-(1-(p-Tolyl)ethyl) hydrogen camphorate 1-(p,alpha-Dimethylbenzyl) camphorate 115-66-2 465-27-0 Camphoric acid, 1-(p,alpha-dimethylbenzyl) ester EINECS 207-362-0