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Propanediol

CAS 31714-45-1 · 20/100 · High conf.

Also registered as 4 other CAS numbers

345260-48-2 · 757125-93-2 · 1629855-95-3 · 504-63-2

Propanediol chemical structure

Concern score

20/100Minor concern based on regulatory listings.
High confidence

Propanediol in plain language

What it is

Also known as 1,3-PROPANEDIOL · Trimethylene glycol · 1,3 Propylene glycol · Propane-1,3-diol · 1,3-PROPANDIOL · 1,3-PROPYLENE glycol

Show all 18 names

1,3-Propylenediol · 1,3-dihydroxypropane · 2-(Hydroxymethyl)ethanol · 2-Deoxyglycerol · 3-diol · HO(CH2)3OH · HOCH2CH2CH2OH · Propan-1,3-diol · beta-Propylene glycol · omega-Propanediol · propano-1,3-diol · zemea propanediol

What it does

Used in cosmetics as a solvent and a thickener.

  • Solvent
  • Viscosity controlling
  • Humectant
  • Fragrance
  • Stabiliser
Is it a concern?
Minor concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 13 composition records across product categories including Raw materials, Personal care, Cleaning products and household care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Propanediol appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial
  • EUCosIngActivePropanediol is the organic compound that conforms to the formula
    • Propanediol is the organic compound that conforms to the formulaSource →
  • EUEFSAEFSA opinionScientific Opinion on the evaluation of the substances currently on the list in the annex to Commission Directive 96/3/EC as acceptable previous cargoes for edible fats and oils - Part III of III (EFSA CONTAM)
    • Scientific Opinion on the evaluation of the substances currently on the list in the annex to Commission Directive 96/3/EC as acceptable previous cargoes for edible fats and oils - Part III of III (EFSA CONTAM)Source →
  • GLOBALJECFAEvaluatedJECFA evaluation record.
  • USEPAcommercial use observedEPA CPDat observed this chemical in 13 composition records across product categories including Raw materials, Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Chemical reaction regulator, Solvent.
    • EPA CPDat observed this chemical in 13 composition records across product categories including Raw materials, Personal care, Cleaning products and household care. EPA CPDat classifies this chemical for functional uses including Fragrance, Chemical reaction regulator, Solvent.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

  • EFSA

    European Food Safety Authority

    • Scientific Opinion on the evaluation of the substances currently on the list in the annex to Commission Directive 96/3/EC as acceptable previous cargoes for edible fats and oils - Part III of III (EFSA CONTAM)

      2012 · EU EFSA listing · Read the source →

  • JECFA

    Joint FAO/WHO Expert Committee on Food Additives

Evidence & sources

No graded research studies for Propanediol yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

8 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA Chemical and Products Database

    exposure · updated October 2017

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • WHO JECFA Database

    regulatory · updated 2026-10-04

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

Not a strong fit for fragrance avoidance because it carries Fragrance.

Avoid

The ingredient itself is a fragrance-linked signal, so it is better treated as an avoid case when fragrance exposure is the main concern.

Where it has been recorded

How often EPA CPDat has listed Propanediol in a product composition. These are source records, not Greenveil catalog products.

Source records

13

Named organisations

6

Raw materialsPersonal careCleaning products and household carePesticides

Typical roles

SolventViscosity controllingHumectantFragranceStabiliser
See products using Propanediol →

Catalog

Found in these products

Their ingredient lists include Propanediol; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 843 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Propanediol in the catalog.