Triphenyl Phosphate

AKA: 115-86-6, Triphenylphosphate, Phosphoric acid, Triphenyl ester, Disflamoll TP, Celluflex TPP, Phosflex TPP, Triphenoxyphosphine oxide, Trifenylfosfat, Phenyl phosphate ((PhO)3PO)

Synthetic

Not Clean

Phosphoric acid, triphenyl ester

Solubility Insoluble (NTP, 1992)

Formula

C18H15O4P

Mol. Weight

326.30

CAS #

115-86-6

Form

Powder

State

Triphenyl phosphate appears as colorless crystals. (NTP, 1992)

Functions

Plasticiser

Antioxidant

Wound Healing

Antimicrobial

Adds flexibility

Traditional Use

A synthetic organic compound developed in the early 20th century for industrial use. In cosmetics, used as a solvent and plasticizer in nail polishes and certain color cosmetics.

EWG

CIR

Safe as used

Pregnancy

Caution

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Concentration Guide

5.0%

0%7%

Reg. Limit

EU/SCCS limit: 5% in nail. Opinion: SCCS/1664/24

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Caution

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

Verified Jun 2026

Data: PubChem · CosIng · EWG · CIR