Bis-Propylheptyl Carbonate
molecular structure · PubChem
AKA: CETIOL KE 4664, Carbonic acid, Bis (2-propylheptyl) ester, 1-HEPTANOL, 1'-CARBONATE, Dipropylheptyl Carbonate
Synthetic
Skin Conditioner
Not Clean
The CIR Expert Panel concluded that the following 6 dialkyl carbonates are safe in the present practices of use and concentration, as described in this safety assessment, when formulated to be non-irritating...Bis-Propylheptyl Carbonate...
Formula
C21H42O3
Mol. Weight
342.60
CAS #
1238449-42-7
Form
Powder
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Conditions Skin
Traditional Use
A modern synthetic ester developed for cosmetics in recent decades. Created as a lightweight emollient and skin conditioning agent to replace heavier traditional oils.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Concentration Guide
Dermal absorption: 99.9%. Source: CIR Safety Assessment (CIR Seq 723).
Regulatory Agencies
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR