Phosphate Esters & Derivatives Available — Bulk Only

Isopropylated Triphenyl Phosphate

CAS 68937-41-7

Isopropylated triphenyl phosphate (IPPP) is a halogen-free aryl phosphate ester that acts as a flame-retardant plasticizer, softening a polymer and raising its fire resistance in a single additive. It is widely used in flexible PVC and engineering plastics and as a fire-resistant base-fluid component in hydraulic systems. The isopropyl substitution lowers volatility relative to unsubstituted triphenyl phosphate

Request SDS
CAS Number
68937-41-7
Material Family
Phosphate Esters & Derivatives
At a Glance
Material Family
Phosphate Esters & Derivatives
Record Type
Polymer fluid
Primary Role
Flame Retardancy · Plasticizing
Functional Roles
Flame Retardancy Plasticizing
Industries Served
Plastics & Polymers Coatings & Construction
Applications & Use Cases
  • ▸ Halogen-free flame-retardant plasticizer for flexible PVC and engineering plastics
  • ▸ Fire-resistant base-fluid component in hydraulic fluids and lubricants
  • ▸ Low-volatility flame resistance for coatings and polymer compounds
  • ▸ Plasticizer/flame retardant for cellulosic and styrenic polymers
Safety & Handling
Full SDS available on request

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 →
Chemical Identity
CAS Number
68937-41-7
Synonyms & Trade Names
IPPP Isopropylated triaryl phosphate Isopropylphenyl diphenyl phosphate Isopropylated phenyl phosphate Comparable to Reofos 65
Full Description

IPPP is used wherever one additive needs to both plasticize and flame-retard a polymer – flexible PVC compounds, cellulosics and engineering thermoplastics are typical hosts. Its low volatility and reasonable hydrolytic stability also make it a component of fire-resistant hydraulic fluids and lubricant formulations, and it is added to coatings and polymer compounds that need halogen-free flame resistance. As a liquid triaryl phosphate it blends readily into resin systems without the migration and fogging problems of more volatile plasticizers

Related Products
Etidronic Acid Disodium Salt (HEDP.Na2)
CAS 7414-83-7 · C2H6Na2O7P2
Phosphate Esters & Derivatives
2,6,7-Trioxa-1-phosphabicyclooctane-4-methanol 1-oxide (PEPA)
CAS 5301-78-0 · C5H9O5P
Phosphate Esters & Derivatives
Aluminum Diethylphosphinate
CAS 225789-38-8 · C12H30AlO6P3
Phosphate Esters & Derivatives
2-Hydroxyphosphonocarboxylic Acid (HPAA, Hydroxyphosphonoacetic Acid)
CAS 23783-26-8 · C2H5O6P
Phosphate Esters & Derivatives
Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.

Ready to Source Isopropylated Triphenyl Phosphate?

Our procurement team handles specification confirmation, lead time, and logistics.

Request a Quote