beauty
cleaning
pharma

Methylpropanediol

CAS 141978-56-5

Also registered as 2 other CAS numbers

863644-93-3 · 2163-42-0

Concern score

Not assessed — no hazard data yet.

Methylpropanediol in plain language

What it is: Also known as 1,3-PROPANEDIOL, 2-METHYL- · 2-Methylpropane-1,3-diol · .beta.-hydroxyisobutanol · 1,3-Dihydroxy-2-methylpropane · 1,3Propanediol, 2methyl · 2-Methyl-1,3-propanediol
Show all 13 names
2-methyl-3-propanediol · Lesonel forming feminine wash · MP Diol · MP diol glycol · NCGC00257601-01 · Propane-1,3-diol, 2-methyl- · Qwgrwmmwndwrqn-uhfffaoysa-n
What it does: Used in cosmetics as a solvent.
Solvent
Fragrance
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

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

In marketed US drugs

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 219 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Solvent, Fragrance.
- EPA CPDat observed this chemical in 219 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Solvent, Fragrance.Source →
USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 1 active drug products and 1 total products.
- FDA NDC lists this ingredient in 1 active drug products and 1 total products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Methylpropanediol. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

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.

Evidence & sources

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

7 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated february 21, 2018
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA National Drug Code Directory
regulatory · updated 2026-12-31
Open →
FDA GSRS UNII
registry · updated 2026-02-26
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.

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 Methylpropanediol in a product composition. These are source records, not Greenveil catalog products.

Source records

219

Named organisations

Personal care

Typical roles

SolventFragrance

See products using Methylpropanediol →

Catalog

Found in these products

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

See all 211 →Find products without it →