- ▸ Low-temperature flame retardant plasticizer for flexible PVC and vinyl
- ▸ Fire-resistant flexibilizer for wire/cable jacketing and coated fabrics
- ▸ Mixed alkyl-aryl phosphate balancing flame resistance and cold-flex
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →
2-Ethylhexyl diphenyl phosphate (DPO, also EHDPP) is a widely used alkyl-aryl phosphate flame-retardant plasticizer for flexible PVC and vinyl films, combining good flame performance, low-temperature flexibility and efficient plasticization. Identity: CAS 1241-94-7.
What it is
2-Ethylhexyl diphenyl phosphate (CAS 1241-94-7) is a mixed 2-ethylhexyl/diphenyl phosphate liquid — one of the most common FR plasticizers for flexible vinyl.
How it performs in fire
It promotes char in the condensed phase while acting as an efficient plasticizer with good low-temperature flexibility. It is a standard choice in flexible PVC film and sheeting where both fire performance and processability matter.
Applications
DPO is used as a flame-retardant plasticizer in flexible PVC film and sheet, vinyl, and coatings. For some food-contact films it is used within regulated limits — confirm regulatory status. Compare IDDP and CDP.
Forms, grades and handling
DPO is supplied as a clear-to-pale liquid in drums, IBCs and bulk. Properties are typical reference values; the Certificate of Analysis (CoA) for the lot you buy governs. Handle per the current Safety Data Sheet (SDS), and confirm regulatory status and restrictions for your market and end use — flame-retardant regulation evolves. Each lot ships with CoA, TDS and SDS.
Bulk supply and RFQ
RawSource sources 2-Ethylhexyl Diphenyl Phosphate direct from producers in bulk, with CoA, TDS and SDS per lot. Tell us your polymer or system, the fire test you must pass, your maximum loading, and whether the application must be halogen-free, and we will quote the right grade. See the full range and selection logic in the flame retardants guide.
Typical Properties
Typical reference values, not a specification; the Certificate of Analysis (CoA) for the lot governs.
| Property | Typical Value |
|---|---|
| Chemical / class | Flame-retardant plasticizer (alkyl-aryl phosphate) |
| Flame-retardant type | Alkyl-aryl phosphate |
| Role in fire performance | Condensed-phase char; plasticizer |
| CAS Number | 1241-94-7 |
| Molecular Formula | C20H27O4P |
| Molecular Weight | 362.4 g/mol |
| Handling | Refer to the current SDS |
Regulatory & registration requirements
- TSCA (US):
- REACH (EU):
- EC number: 214-987-2
Source: EPA TSCA Inventory (July 2025 release) · ECHA CHEM — retrieved 2026-07-12
Frequently Asked Questions
What is 2-ethylhexyl diphenyl phosphate (DPO) used for?
2-Ethylhexyl diphenyl phosphate (DPO/EHDPP, CAS 1241-94-7) is an alkyl-aryl phosphate flame-retardant plasticizer for flexible PVC film and sheet, vinyl and coatings, combining flame performance, low-temperature flexibility and plasticization.
Is DPO used in food-contact applications?
2-Ethylhexyl diphenyl phosphate is used in some regulated food-contact films within set limits; confirm the regulatory status and migration limits for your specific application and jurisdiction.
How is bulk 2-ethylhexyl diphenyl phosphate supplied and quoted?
RawSource supplies 2-ethylhexyl diphenyl phosphate in bulk with CoA, TDS and SDS per lot. Pricing is quote-based on grade and volume; submit an RFQ with your target quantity, polymer/system and the fire test you must pass.
What is the REACH and TSCA regulatory status of 2-Ethylhexyl Diphenyl Phosphate (DPOP)?
2-Ethylhexyl Diphenyl Phosphate (DPOP) (CAS 1241-94-7) is subject to U.S. TSCA Inventory requirements; supplying it into the EU requires valid REACH registration ((EC) No 1907/2006). RawSource cannot verify a third-party supplier's registrations — buyers should require documented TSCA and REACH compliance for their jurisdiction and volume (EC 214-987-2).