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China and Germany are the leading exporters of diisononyl phthalate (CAS 68515-48-0), collectively accounting for a majority of global shipments, while the United States, India, and South Korea represent the largest importers. Diisononyl phthalate prices have remained relatively stable amid moderate volume fluctuations across major trade corridors. Export volumes from China have edged upward since 2022, while German exports have held steady, and U.S. imports have increased modestly—reflecting continued demand in plasticizer applications despite regulatory scrutiny in some markets.
Diisononyl phthalate (DINP) is a colorless to pale yellow, viscous liquid with low volatility and no sharp odor. It is an aromatic ester, specifically a dialkyl phthalate, synthesized from phthalic anhydride and branched C₉ alcohols. DINP is primarily used as a plasticizer in polyvinyl chloride (PVC) and other polymers to impart flexibility, durability, and processability. Its principal applications include wire and cable insulation, flooring, automotive interiors, and industrial hoses—where enhanced thermal stability and resistance to extraction are required. It is not employed as a chemical intermediate but functions exclusively as a performance additive in polymer formulations.
Its majoruse is as a plasticizer.
The empirical formula of diisononyl phthalate (DINP) isC26H42O4. The structural formula of DINP varies because theiso-alcohols used in the manufacture contain several isomers.DINP is a clear, colorless to light yellow liquid. DINP is insoluble in water, but it issoluble in organic solvents.
This chemical is included in Plastics. See more about what is Diisononyl phthalate and Diisononyl phthalate SDS information.
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