1,2-Benzenedicarboxylic acid, monobutyl ester, copper(2+) salt 131-70-4 5423-38-1 Butyl phthalate, copper salt Copper dibutyl diphthalate EINECS 226-554-5 NSC 231385 Phthalic acid, monobutyl ester, copper(2+) salt (8CI) Phthalic acid, monobutyl ester, copper(II) salt