Product Name Diisononyl Phthalate
Abbreviation DINP
CAS Number 28553-12-0 / 68515-48-0
Synonyms:1,2-Benzenedicarboxylic acid, diisononyl ester; DINP
EINECS 249-079-5
Molecular Formula C26H42O4
Molecular Weight 418.61
INCI Name DIISONONYL PHTHALATE
2. Chemphysical Properties
Appearance Colorless to pale yellow clear oily liquid
Density (20℃) 0.971~0.977 g/mL
Refractive Index (20℃) 1.482~1.486Freezing Point -48 ℃
Boiling Point 279~287 ℃
Flash Point (Closed Cup) ≥210 ℃Viscosity (20℃) 75~85 mPa·s
Solubility Insoluble in water; miscible with alcohols, ethers, hydrocarbons and most organic solvents
Volume Resistivity (30℃) ≥3.0×10¹¹ Ω·cm
3. Quality Specification (Industrial Grade)
| Test Item | Standard |
|---|---|
| Ester Content (GC) | ≥99.0% |
| Water Content | ≤0.10% |
| Acid Value (mgKOH/g) | ≤0.06 |
| Color (Pt-Co) | ≤30 |
| Heating Loss (125℃,3h) | ≤0.10% |
4. Application & Use
High molecular weight primary plasticizer for flexible PVC, widely used in wires & cables, automotive interiors, flooring, artificial leather, plastisols.
Low volatility, good weather resistance and excellent compatibility with PVC, commonly used as replacement of DEHP (DOP).
Important Note: DINP is subject to REACH restriction in EU for certain consumer articles.
5. Packing
200kg galvanized steel drum / IBC tank / ISO tank bulk.
6. Storage & Transportation
Store in cool, dry, well-ventilated warehouse, tightly sealed, away from heat, flame and strong oxidants.
UN3082, Class 9, Packing Group III. Avoid direct sunlight and rain.
Shelf life: 12 months under proper storage.
Disclaimer: The above typical data is for reference only, not contract specification.



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