Diisononyl phthalate
Diisononyl phthalate (CAS: 28553-12-0, Formula: C6H4(CO2C9H19)2) is a high-molecular-weight phthalate ester with a molecular weight of 418.61 g/mol. It is widely recognised for its excellent plasticising properties, particularly in flexible PVC applications. This versatile compound enhances the flexibility, durability, and processability of polymers, making it a key additive in various industrial formulations.
- IUPAC
- DINP
Flexible PVC Production
Diisononyl phthalate is extensively used as a primary plasticiser for polyvinyl chloride (PVC). It imparts significant flexibility and low-temperature performance to PVC compounds, essential for products like cables, flooring, films, and automotive interiors.
Adhesives and Sealants
This phthalate ester serves as a plasticiser in various adhesive and sealant formulations. It helps to improve the flexibility, adhesion, and durability of these materials, ensuring long-lasting performance in demanding applications.
Coatings and Lacquers
Diisononyl phthalate contributes to the flexibility and film-forming properties of coatings and lacquers. It is used in industrial coatings to enhance durability and resistance to environmental factors.
Rubber and Polymer Modification
It acts as a processing aid and plasticiser in rubber and other polymer systems, improving their elasticity and ease of processing during manufacturing.
| Molecular weight | 418.61 |
|---|---|
| Linear formula | C6H4(CO2C9H19)2 |
| Grade | technical grade |
| Density | 0.972 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.485(lit.) |
| Vapour pressure | 1 mmHg (200 °C) |
| Impurities tested | ≤0.15% dioctyl phthalate(typical) |
| Composition | ester content, ≥99% (mixture of C9 isomers) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diisononyl phthalate (CAS 28553-12-0) used for?
+
Diisononyl phthalate is primarily used as a plasticiser in flexible PVC applications, enhancing flexibility and durability. It also finds use in adhesives, sealants, coatings, and for general polymer modification.
What is the CAS number and chemical formula for Diisononyl phthalate?
+
The CAS number for Diisononyl phthalate is 28553-12-0, and its chemical formula is C6H4(CO2C9H19)2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Diisononyl phthalate in technical grade, with an ester content of ≥99% (mixture of C9 isomers). We do not represent this product as USP, BP, or EP grade.
How should Diisononyl phthalate be handled safely?
+
Diisononyl phthalate is classified under WGK 2 in Germany, indicating it is hazardous to water. Handle with appropriate personal protective equipment and avoid release into the environment.
Can Diisononyl phthalate be shipped internationally?
+
Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and laboratory reagents, including Diisononyl phthalate.
How can I request a quote or sample of Diisononyl phthalate?
+
To request a quote or sample of Diisononyl phthalate, please contact our sales team through the details provided on our website.
▶ Related products
(2,3-Epoxypropyl)benzene
Polymer Science
(2-Boc-amino)ethyl methacrylate
C11H19NO4
Polymer Science
(3,5,5-Trimethylcyclohex-2-enylidene)malononitrile
Polymer Science
(3-Acrylamidopropyl)trimethylammonium chloride solution
Polymer Science
1,1,1-Trifluoro-2-(trifluoromethyl)-2-hydroxy-4-methyl-5-pentyl methacrylate
Polymer Science
1,1,1-Tris(4-hydroxyphenyl)ethane
Polymer Science
1,1-Cyclohexanediacetic acid
Polymer Science
1,12-Diisocyanatododecane
Polymer Science
▶ Explore more
3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis
3-Methyl-1,5-pentanediol
Chemical Synthesis
3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis