Propylene Carbonate

Propylene Carbonate 1
molecular structure · PubChem CID 7924
AKA: 108-32-7, 4-Methyl-1, 3-dioxolan-2-one, 1, 2-Propylene carbonate, 2-Propanediol cyclic carbonate, Arconate 5000, Texacar PC, Cyclic propylene carbonate, 2-Propanediol carbonate, 3-Dioxolan-2-one
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Synthetic
Solvent
Clean
OriginSynthesized from propylene oxide and carbon dioxide through catalytic reaction with appropriate catalysts and conditions. The product is created via chemical synthesis rather than extraction from natural sources.
Propylene carbonate has been reported in Solanum lycopersicum with data available.
Solubility In water, 1.75X10+5 mg/L at 25 °C
Formula
C4H6O3
Mol. Weight
102.09
CAS #
108-32-7
Form
Liquid
State
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Viscosity Controlling
Dissolves Ingredients
Controls Viscosity
Dissolves other ingredients
Controls product thickness
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
7 studies / 7 not sensitizing (CIR 164 and 880)
Mixed Phototoxicity Results
Both phototoxic and non-phototoxic results in the CIR safety assessment (CIR 164 and 880)
Mixed Eye Irritation Results
19 studies / 12 irritating / 3 mixed / 4 not irritating / reactions minimal to moderate (CIR 164 and 880)
Mixed Skin Irritation Results
22 studies / 14 irritating / 5 mixed / 3 not irritating / reactions minimal to moderate (CIR 164 and 880)
Concentration Guide
Leave-on0.0064–17.9%
Rinse-off0.24–6%
0%50%100%
CIR reported use · 2022 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR