1, 2-Benzenedicarboxylic acid, di-C9-C10 branched & linear alkyl esters, C9 rich. Acts as a plasticizer. It is produced by esterifying C9-C10 mixed alcohol and phthalic anhyrdide. It exhibits low volatility, superior PVC compatibility and superior cold resistance. Used in wires & cables, clothes, leathers, gloves, shoes, construction materials and PVC plastisols.