1,2-Benzenedicarboxylic acid, nonyl undecyl ester, branched and linear nonyl undecyl phthalate, branched and linear 1,2-Benzenedicarboxylic acid, 1-nonyl 2-undecyl ester, branched and linear 1,2-Benzenedicarboxylic acid, C9,C11-branched and linear dialkyl ester 1,2-Benzenedicarboxylic acid, nonyl undecyl ester Branched and linear nonyl undecyl phthalate