Diethyl Phthalate (DEP) Supplier in Malaysia
- Also known as
- DEP
- Phthalic Acid Diethyl Ester
- Diethyl Orthophthalate
Diethyl phthalate supplier for plastics, coatings, fragrance and industrial solvent buyers in Malaysia. Also called DEP, phthalic acid diethyl ester and diethyl orthophthalate (CAS 84-66-2, formula C12H14O4), it is a clear oily liquid used as a plasticiser, carrier solvent and fragrance fixative.
Commercial grades include industrial and plasticiser material for cellulose plastics, coatings, inks and adhesives, plus fragrance or personal-care grade DEP where colour and odour controls matter. Pack format and documentation are confirmed with the quotation rather than fixed on this page.
Formulators use diethyl phthalate in perfume and cosmetic bases, as a lighter phthalate plasticiser in selected plastics and films, and as a process solvent in coatings, printing inks, adhesives and general manufacturing. It is a different product from DBP, DOP/DEHP and other phthalate esters.
Send the required grade, application, target specification, quantity and delivery location with your enquiry. Availability, packing, documentation and delivery timing are confirmed with the quotation.

- CAS number
- 84-66-2
- Formula
- C12H14O4
- Grade
- industrial, cosmetic
- Appearance
- clear, colourless to pale yellow oily liquid
Diethyl 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 |
|---|---|---|---|---|
| Industrial-grade diethyl phthalate | clear oily liquid | — | General plasticiser and process solvent for cellulose plastics, coatings, inks, adhesives and other industrial formulations where commercial purity is sufficient. | Confirm the required pack format with the quotation. |
| Plasticiser-grade diethyl phthalate | clear oily liquid | — | Softening and flexibility aid in selected plastics, films, coatings and compounded systems that specify DEP rather than a longer-chain phthalate. | Confirm the required pack format with the quotation. |
| Fragrance and personal-care grade DEP | clear, low-odour oily liquid | — | Solvent, carrier and fixative in fragrance compounds, cosmetic bases and related personal-care formulations where colour and odour controls matter. | Confirm the required pack format with the quotation. |
How to buy diethyl phthalate from ChemTrade
Request a quote for diethyl 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 | — |
| CAS number | 84-66-2 | — |
| Molecular formula | C12H14O4 | — |
| Molecular weight | 222.24 g/mol | — |
| Solubility | practically insoluble in water; miscible with many organic solvents and oils | — |
| Grade controls | purity, colour, acid value, water content and odour confirmed against the required grade | — |
Diethyl Phthalate applications
Safety and handling
Store sealed in a cool, well-ventilated place away from heat, ignition sources and strong oxidising agents. Handle as an industrial chemical liquid with suitable gloves, eye protection and ventilation when charging or mixing.
Common questions about diethyl phthalate
Are diethyl phthalate and DEP the same product?
Yes. DEP is the common commercial abbreviation for diethyl phthalate, also known as phthalic acid diethyl ester and diethyl orthophthalate, CAS 84-66-2. It is not the same substance as dibutyl phthalate (DBP), dioctyl phthalate (DOP/DEHP) or other phthalate esters, so name the molecule clearly in the enquiry.
Which diethyl phthalate grade should I request?
Industrial or plasticiser grades suit cellulose plastics, coatings, inks and general process solvent duty. Fragrance and personal-care grades are selected when colour, odour and cosmetic-related controls matter. State the end use and any purity or odour limits so the suitable grade can be quoted.
Is diethyl phthalate the same as dibutyl phthalate or DOP?
No. Diethyl phthalate (DEP) is a distinct ester from dibutyl phthalate (DBP), dioctyl phthalate sold commercially as DEHP, and other phthalates such as DIBP, DOTP or dimethyl phthalate. If a specification names a different phthalate, request that product rather than DEP.
What specifications should a buyer provide for DEP?
State the intended application and any required limits for purity, colour, acid value, water content and odour. For an existing formulation, include the current specification or a representative sample requirement so the quoted material can be matched more closely.
Can documentation and packing be requested with the quotation?
Yes. List the required product documents and preferred pack format in the enquiry. Available documentation, packing and commercial details are confirmed for the quoted grade.
What details are needed for a diethyl phthalate price enquiry?
Provide the grade, application, target specification, quantity and delivery location. Mention any preferred pack size, documentation needs and required timing so the quotation can address the complete requirement.
