1,2,2-Trimethyl-1,3-cyclopentanedicarboxylic acid 1,3-Cyclopentanedicarboxylic acid, 1,2,2-trimethyl-, cis- (9CI) 5394-83-2 CIS-1,2,2-TRIMETHYL-1,3-CYCLOPENTANEDICARBOXYL* Camphoric acid EINECS 226-404-9 NSC 174634