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Chemical compound From Wikipedia, the free encyclopedia
Diisononyl phthalate (DINP) is a phthalate used as a plasticizer. DINP is typically a mixture of chemical compounds consisting of various isononyl esters of phthalic acid, and is commonly used in a large variety of plastic products.
Names | |
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Preferred IUPAC name
1,2-Benzenedicarboxylic acid, di-C8-10 branched alkyl esters, C9 rich | |
Other names
1,2-Benzenedicarboxylic acid, 1,2-diisononyl ester | |
Identifiers | |
3D model (JSmol) |
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Abbreviations | DINP |
ChEBI | |
ChemSpider | |
ECHA InfoCard | 100.044.602 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
C26H42O4 | |
Molar mass | 418.618 g·mol−1 |
Appearance | Oily viscous liquid |
Density | 0.98 g/cm3 |
Melting point | −43 °C (−45 °F; 230 K) |
Boiling point | 244 to 252 °C (471 to 486 °F; 517 to 525 K) at 0.7 kPa |
<0.01 g/mL at 20 °C | |
Viscosity | 64 to 265 mPa·s |
Hazards | |
Flash point | 221 °C (430 °F; 494 K) (c.c.) |
380 °C (716 °F; 653 K) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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The European Union has set a maximum specific migration limit (SML) from food contact materials of 9 mg/kg food for the sum of diisononyl phthalates and diisodecyl phthalates.[2]
DINP is listed as a substance "known to the State of California to cause cancer" under Proposition 65 legislation.[3]
Studies find that exposure to environmentally relevant concentrations of DINP in zebrafish disrupt the endocannabinoid system (ECS) and affect reproduction in a gender specific manner,[4] and have other adverse effects on aquatic organisms, as DINP upregulates orexigenic signals and causes hepatosteatosis together with deregulation of the peripheral ECS and lipid metabolism.[5]
The ECHA's Risk Assessment Committee (RAC) has concluded, on March 7, 2018, that Di-isononyl phthalate (DINP) does not warrant classification for reprotoxic effects under the EU's Classification, Labelling and Packaging (CLP) regulations.[6]
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