Cyclohexane dicarboxylic acid diisononyl ester (DINCH) is a mixture of organic compounds with the formula C6H10(CO2C9H19). DINCH is colorless oil. It is used as a plasticizer for the manufacture of flexible plastic articles in sensitive application areas such as toys, medical devices, and food packaging. It is of interest as an alternative for phthalate plasticizers, which are implicated as endocrine disruptors.
Dioctyl adipate (DOA) is an organic compound with the formula (CH2CH2CO2C8H17). It is a colorless oily liquid. As well as related diesters derived from 2-ethylhexanol, decanol, isodecanol, etc., it is used as a plasticizer.
Plasticizers are used to soften rigid PVC (polyvinylchloride) and to turn it from being hard and brittle to soft and flexible. Because of high safety standards and extensive testing, DINCH is recommended whenever people are in close contact with PVC products that contain plasticizers.
DINP is the most used plasticizer, but it is fully interchangable with DIDP and in some aplications also with DOTP.