Diisononyl Phthalate - 28553-12-0

Key Functions: Plasticizers & Polymer

DINP is a mixture (even in a "pure" form) of mainly C9 branched isomers with an average chemical formula of C26H42O4. Several different formulations of DINP are used in industry. DINP is produced by esterification of phthalic anhydride with isononyl alcohol. DINP is primarily used as a plasticizer in PVC and non-PVC applications (EU RAR 2003). DINP is manufactured by the either the n-butene process (CAS #28553-12-0) or the "Polygas" process (CAS 68515-48-0) (EU RAR 2003). The latter compound is the technical grade substance (ChemIDplus 2011). A third, discontinued DINP production process is n- and iso-butane based

Chemical Synonyms 1,2-Benzenedicarboxylic acid, diisononyl ester (CAS #28553-12-0), and 1,2-Benzenedicarboxylic acid, di-C8-10-branched alkyl esters, C9 rich

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