Diisononyl phthalate DINP (CAS 28553-12-0) Market Research Report 2026 '@aboutDiisononyl phthalate (DINP), a.k.a. diisononyl ester, Bis(7-methyloctyl) phthalate, phthalic acid, is a common plasticizer with the molecular formula C26H42O4 and molecular weight 418.60. Diisononyl phthalate, a clear colorless odorless oily viscous ...