Propylene Carbonate

Also known as: 1,3-Dioxolan-2-one, 4-methyl-, 5-19-04-00021, BRN 0107913, Carbonic acid, cyclic propylene ether, Dipropylene carbonate (+4 more)

INCI: PROPYLENE CARBONATE

Propylene Carbonate (CAS 108-32-7) is a cosmetic cosmetic ingredient functioning as Solvent, Viscosity-decreasing agent. NOAEL 5000 mg/kg bw/day (cross-referenced against ToxValDB ECHA IUCLID); EU Regulation 1223/2009 status: permitted. Industrial safety data is also available in the chemical safety database. Same-CAS public records also appear in industrial chemical safety data.

View industrial chemical safety profile for CAS 108-32-7 →

Auto-generated CPSR Part A draft with source citations
Function
Solvent, Viscosity-decreasing agent
Safety Rating
GOOD

Chemistry & Identifiers

Formula
C4H6O3
MW
102.09 g/mol
EC Number
203-572-1
PubChem CID
7924
IUPAC Name
4-methyl-1,3-dioxolan-2-one
InChIKey
RUOJZAUFBMNUDX-UHFFFAOYSA-N

Regulatory Status

EU EU Status permitted
US US Status permitted
US Notes Permitted; FDA-approved inactive ingredient in topical drugs (max 3000 mg/day); 13,340 formulations listed in 2024 RLD

For full compliance data across multiple jurisdictions, use the Substance Compliance tool.

Safety Data

Margin of Safety, dermal absorption, and sensitization profile summaries for Propylene Carbonate.

Calculate MoS for your specific formulation with the MoS Calculator.

Pre-Calculated Safety Assessment

Pre-calculated NOAEL → SED → MoS audit trail for Propylene Carbonate across SCCS product categories, with measured dermal absorption where available.

EU CLP Annex VI Harmonized Classification

Legally binding harmonized classification per Regulation (EC) No 1272/2008 (CLP) Annex VI.

Signal Word
Warning
Pictograms
Harmful / Irritant
Hazard Class and Category
Eye Irrit. 2
Hazard Statements
  • H319 Causes serious eye irritation

Inserted via ATP: CLP00

ECHA REACH Registration

European Chemicals Agency REACH dossier and Substances of Very High Concern listing.

Registration Type
Full
Tonnage Band
10,000 - 100,000 tonnes
Substance Type
SUBSTANCE; GROUP
SVHC Candidate
No
Hazard classification: Restricted (Annex XVII)

Additional Ingredient Properties

1 property record from structured ingredient metadata.

baby_pediatric
{"cas_number": "CAS-FUNC-6", "ingredient_class": "other", "pediatric_safety_rating": "good", "minimum_age_months": "3", "neonatal_safe": "no", "premature_infant_safe": "insufficient_data", "skin_barrier_maturity_consideration": "Functional ingredient - generally safe", "transepidermal_absorption_risk_pediatric": "low", "systemic_exposure_concern_pediatric": "low", "dose_per_kg_body_weight_concern"…

PubChem Annotations

Safety and regulatory annotations from PubChem (NCBI) aggregated sources.

Safety (1)
Skin Eye Respiratory Irritation
A human skin irritant. An eye irritant.
Source: Hazardous Substances Data Bank (HSDB)

Function Categories & List Membership

Cosmetic/Chemical Function Categories
Catalyst Filler Fragrance Solubility enhancer Solvent Thickening agent Viscosity modifier
Regulatory List Membership (3)
IFRA Fragrance Transparency List EPA Safer Chemical Ingredients List (SCIL) FDA Indirect Food Contact Additives

Expert Verdict

Expert safety assessment and concern-level summary for Propylene Carbonate.

Regulatory Flags

epa_safer_alternative ifra_fragrance

NOAEL Studies Summary

View details ->

Public NOAEL study rows linked to Propylene Carbonate by CAS number or substance name.

Studies
9
Lowest NOAEL
52 mg/kg bw/day
Highest NOAEL
10400 mg/kg bw/day
ECHA_REACH_reach_study_results_dossiers_23-05-2023.zip

Known Synonyms

1,3-Dioxolan-2-one, 4-methyl- 5-19-04-00021 BRN 0107913 Carbonic acid, cyclic propylene ether Dipropylene carbonate EINECS 203-572-1 4-Methyldioxalone-2 Propylenester kyseliny uhlicite UNII-8D08K3S51E

Chemical Function

Solubility enhancer Solvent Viscosity modifier Fragrance

Regulatory Lists

IFRA Transparency inert_ingredient; non_food_use; Pesticides CEDI Indirect additives food contact (10/2018) Cleaning products and household care - oven - oven cleaner; Europe SCIL (9/2019)

Australian Status

AICIS status: listed

Frequently Asked Questions

Is Propylene Carbonate safe in cosmetics?

Propylene Carbonate has a safety rating of "GOOD" in our database. EU status: permitted. US status: permitted.

Is Propylene Carbonate allowed in the EU?

Propylene Carbonate EU regulatory status: permitted. This is based on EU Regulation 1223/2009 and its amendments.

What does Propylene Carbonate do in cosmetics?

Propylene Carbonate functions as: Solvent, Viscosity-decreasing agent. It is classified as a cosmetic ingredient in our database. CAS number: 108-32-7.

Is Propylene Carbonate used outside cosmetics?

Propylene Carbonate also appears in industrial chemical safety data. The cross-vertical cards on this page render same-CAS public rows from the matched databases.

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