What does 1,2-Pentanediol do?

Used in consumer products as a solvent, a fragrance ingredient and a conditioner.

Is 1,2-Pentanediol safe?

We haven't assessed a concern score for this ingredient yet.

beauty
cleaning

1,2-Pentanediol

CAS 5343-92-0

Also registered as 1 other CAS number

91049-43-3

Concern score

Not assessed — no hazard data yet.

1,2-Pentanediol in plain language

What it is: Also known as Pentylene glycol · 1,2-Pentanediol · Pentane-1,2-diol · (+/-)-1,2-PENTANEDIOL · (+/-)-Pentane-1,2-diol · (±)-1,2-PENTANEDIOL
Show all 16 names
1,2-Dihydroxypentane · 1,2-Pentanediol, 96% · 1,2-Pentanediol,(2S)- · 1,2-Pentylene glycol · 1,a2-aPentanediol · 3-01-00-02191 (Beilstein Handbook Reference) · Diol PD · Ec 226-285-3 · Hydrolite 5 · UNII-50C1307PZG
What it does: Used in consumer products as a solvent, a fragrance ingredient and a conditioner.
Solvent
Fragrance
Conditioner
Is it a concern?: We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. 1,2-Pentanediol appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

USEPAcommercial use observedEPA CPDat observed this chemical in 19 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Solvent, Softener and conditioner, Fragrance.
- EPA CPDat observed this chemical in 19 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Solvent, Softener and conditioner, Fragrance.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 1,2-Pentanediol. 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 1,2-Pentanediol yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

EPA Chemical and Products Database
exposure · updated june 20, 2019
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
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 1,2-Pentanediol in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

Typical roles

SolventFragranceConditioner

See products using 1,2-Pentanediol →

Catalog

Found in these products

Their ingredient lists include 1,2-Pentanediol; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 715 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside 1,2-Pentanediol in the catalog.

1,​2-​Pentanediol

1,​2-​Pentanediol in plain language