ChemFlexx Dicarboxylic Acid Diisononyl Ester

ChemFlexx Dicarboxylic Acid Diisononyl Ester, also known as 1,2-Cyclohexane dicarboxylic acid diisononyl ester, is a plasticizer used in the manufacture of flexible plastic products as an alternative for phthalate plasticizers. The colorless, almost odorless liquid is not classified as dangerous.


The molecular formula for ChemFlexx Dicarboxylic Acid Diisononyl Ester is C26H48O4. Its CAS number is 166412-78-8. This chemical is used in sensitive application areas to manufacture toys, children’s products, medical devices, and food packaging when an alternative to phthalate plasticizers is needed. The non-toxic water-soluble liquid belongs to the group of aliphatic esters.

This chemical is produced by hydrogenation of DINP /diisononyl phthalate in the presence of a catalyst, or the Diels-Alder reaction of a maleic acid ester with 1,3-butadiene followed by hydrogenation.


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