Diisononyl cyclohexane-1,2-dicarboxylate

Diisononyl cyclohexane-1,2-dicarboxylate, commonly known as DINCH and sold under trade names including Hexamoll DINCH and Elatur CH, is a non-phthalate plasticizer with CAS number 166412-78-8. It carries no E-code designation and is categorised under oils, fats and waxes.

DINCH is used primarily in flexible PVC formulations for medical devices, food contact materials, and automotive interior components. It functions by intercalating between polymer chains, reducing intermolecular forces and lowering the glass transition temperature to deliver flexibility and durability without the toxicological profile associated with phthalate alternatives.

DINCH is available in liquid form and is registered under REACH. It meets the regulatory requirements for sensitive-end-use applications, including food contact and medical-grade PVC, and is subject to EU plastics regulation (EU) 10/2011. Supply is typically offered in drums and isotanks depending on order volume.