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Diisononyl phthalate

CAS Number
28553-12-0
EC Number
249-079-5
Chemical Formula
C26H42O4
Molecular Weight
418.6 g/mol
Industries:AutomotivePrinting & PackagingRubber & TireBuilding & ConstructionPlastics & Polymers

Description

Diisononyl phthalate ( CAS 28553-12-0 ), commonly known as DINP, is a high-molecular-weight phthalate plasticizer used across PVC and polymer processing industries. It improves flexibility and workability in rigid formulations. This chemical serves as a standard choice where durability and low volatility are procurement priorities. In building and construction, it is used in PVC flooring, roofing membranes, and window profiles. These applications require long-term flexibility under mechanical stress. Automotive manufacturers specify it in interior trim, underbody coatings, and cable insulation due to its resistance to heat aging. Wire and cable producers rely on this plasticizer to meet electrical insulation performance requirements across a range of operating temperatures. It ensures stability in demanding environments. In printing and packaging, it functions as a plasticizer in inks and coatings applied to flexible PVC substrates. This versatility makes it a staple in modern industrial manufacturing processes. The product is supplied as a clear, low-viscosity liquid in bulk quantities including ISO tank, flexi-tank, and drum formats. It is available in technical grade for industrial use. This is the standard commercial specification for industrial PVC compounding. Buyers should confirm purity levels and migration compliance with relevant regional regulations when sourcing for sensitive applications. Contact us for supply of Diisononyl phthalate Request Quote

Other Names (Synonyms)

Bis(7-methyloctyl) benzene-1,2-dicarboxylate | Diisononylphthalate | DINP

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point-43 °C
Boiling Point244-252 °C @ Press: 5 Torr
Density1 x 10<sup>-6</sup> g/cm³ @ Temp: 20 °C
Flash Point235 °C
ColorColourless
FormOil
Water Solubility<0.1 g/100 mL at 21 ºC
Vapor Pressure1 mmHg ( 200 °C)
Refractive Indexn20/D1.485(lit.)
Log P9.026 (est)

Safety & Handling

Warning
GHS08· Health Hazard

Hazard Statements

H351Suspected of causing cancer
H360May damage fertility or the unborn child
H361Suspected of damaging fertility or the unborn child

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.

Trade & Regulatory

HS Code2917.34.0150
Storage Class10 - Combustible liquids
WGK (Germany)3