Diisononyl Phthalate (DINP) Plasticiser Supplier in Malaysia
- Also known as
- DINP
- Di-Isononyl Phthalate
- Isononyl Phthalate
- Phthalic Acid Diisononyl Ester
Diisononyl phthalate supplier for PVC compounders, plastisol houses and adhesive formulators in Malaysia. Ordered as DINP, it is a clear oily ester plasticiser of low volatility, used where a flexible vinyl compound has to hold its softness through service. Buyers also write it as di-isononyl phthalate or phthalic acid diisononyl ester.
There is a single liquid form, so the commercial choice is a specification question rather than a form question. Grades separate on purity, colour, acid value and volatile loss, which is what divides everyday compounding material from a lot destined for pale plastisols or hot service cable. State the polymer system and the property that governs the compound.
DINP is a heavier phthalate than DOP and the two are not drop-in equivalents, neither is DOTP nor DBP. Loading, permanence and volatile loss all move when the ester changes, so the plasticiser wanted should be named in full on the enquiry. The other esters are quoted as their own products.
Send the required specification, the intended compound or application, the quantity and the delivery location with your enquiry. Availability, pack format and documentation are confirmed when the offer is made. Supply is subject to applicable requirements.

- Formula
- C26H42O4
- Grade
- general purpose, low colour selection, low volatility selection
- Appearance
- clear, colourless to pale yellow oily liquid
Diisononyl Phthalate grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| General purpose DINP | clear oily liquid | — | Primary plasticiser in everyday flexible PVC compounding for sheeting, hose, tubing, extruded profiles and calendered film, where the compound is chosen on cost and processing rather than on a tight colour or volatility limit. | Drum, IBC or flexitank, confirmed with the quotation. |
| Low colour DINP selection | clear, near colourless oily liquid | — | Plastisol, coated fabric, artificial leather and screen ink work where the finished shade is pale and any yellowing carried in by the plasticiser shows in the print or the top coat. | Drum, IBC or flexitank, confirmed with the quotation. |
| Low volatility DINP selection | clear oily liquid | — | Wire and cable insulation, sealing profiles and interior trim compounds held at raised temperature, where volatile loss and migration out of the compound decide the selection rather than initial softness. | Drum, IBC or flexitank, confirmed with the quotation. |
How to buy diisononyl phthalate from ChemTrade
Request a quote for diisononyl phthalate
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | clear, colourless to pale yellow oily liquid | — |
| Molecular formula | C26H42O4 | — |
| Molecular weight | approximately 419 g/mol | — |
| Volatility | low relative to the shorter chain phthalate esters, which is the usual reason it is specified | — |
| Water solubility | practically insoluble in water, miscible with common organic solvents and with other plasticiser esters | — |
| Grade selection basis | purity, colour, acid value and volatile loss as required by the compound | — |
Diisononyl Phthalate applications
Safety and handling
Keep in closed drums, IBCs or tanks in a cool, well ventilated place, out of direct sunlight and away from heat, ignition sources and strong oxidising agents. Avoid skin contact and breathing mist when charging hot, and work with gloves, eye protection and extraction at the mixer. Handle the material under the safety information supplied with the offered grade.
Common questions about diisononyl phthalate
What is diisononyl phthalate used for?
It is a general purpose plasticiser for flexible PVC. Typical work includes cable insulation, flooring and wall covering, hose and tubing, extruded profiles, plastisols, coated fabric and artificial leather, plus PVC based adhesives and sealants.
What is the difference between diisononyl phthalate and DOP?
They are two different phthalate esters. DINP is built on a longer branched C9 alcohol, so it is heavier and less volatile in the compound, while DOP plasticises at a lower cost with more loss over time at temperature. Loading and processing behaviour both shift when one replaces the other, so quote the ester the specification actually calls for.
Is diisononyl phthalate interchangeable with DOTP or DBP?
Treat them as separate materials to be selected on the finished article. DOTP is a terephthalate rather than an orthophthalate ester, and DBP is a much lighter, faster fusing plasticiser used for different reasons. State which ester the compound is formulated around and it is quoted as its own line.
Does DINP satisfy a specification written for a non-phthalate plasticiser?
No. Diisononyl phthalate is a phthalate ester, so a formulation drawn up specifically around a non-phthalate plasticiser needs a different ester family. Say so in the enquiry and the alternative is quoted instead.
Which DINP grade should I request?
There is one liquid form, so the choice is a specification question. Ask for a low colour selection when the finished article is pale, a low volatility selection for cable and hot service compounds, and general purpose material where neither limit governs.
What details are needed for a DINP price enquiry?
Send the quantity, the delivery location, the compound or application, and any colour, acid value or volatile loss figures the plasticiser has to meet. Mention the pack format that suits the plant and the documentation the receiving process needs.
