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GREENVEIL

  • industrial
  • pharma

2-Mercaptoethanol

CAS 60-24-2

Also registered as 1 other CAS number

99748-78-4

2-Mercaptoethanol chemical structure

Concern score

Not assessed — no hazard data yet.

2-Mercaptoethanol in plain language

What it is

Also known as 1-ETHANOL-2-THIOL · 2-Sulfanylethan-1-ol · 2-sulfanylethanol · Monothioethylene glycol · Monothioglycol · Thioethylene glycol

Show all 26 names

Thioglycol · .beta.-hydroxyethanethiol · .beta.-hydroxyethylmercaptan · 1-Hydroxy-2-mercaptoethane · 1-Mercapto-2-hydroxyethane · 2-Hydroxy-1-ethanethiol · 2-Hydroxyethanethiol · 2-Hydroxyethyl mercaptan · 2-MERCAPTO ethanol · 2-Mercapto-1-ethanol · 2-Mercaptoethyl alcohol · 2-Thioethanol · Beta-Mercaptoethanol · Ethanol, 2-mercapto- · Hydroxyethyl mercaptan · Mercaptoetanol · Mercaptoethanol · Thiomonoglycol · Usaf EK-4196 · b-Mercaptoethanol

What it does

Used in consumer products as a flavouring.

  • Flavouring
Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. 2-Mercaptoethanol appears in these published regulatory listings.

  • In marketed US drugs

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • USEPAcommercial use observedEPA CPDat observed this chemical in 13 composition records across product categories including Construction and building materials, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.
    • EPA CPDat observed this chemical in 13 composition records across product categories including Construction and building materials, Laboratory supplies. EPA CPDat classifies this chemical for functional uses including Flavouring and nutrient.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 →

Evidence & sources

No graded research studies for 2-Mercaptoethanol yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

  • EPA Chemical and Products Database

    exposure · updated February 8, 2019

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA National Drug Code Directory

    regulatory · updated 2027-12-31

    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 →
Reference links (1)

Suitability

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

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed 2-Mercaptoethanol in a product composition. These are source records, not Greenveil catalog products.

Source records

13

Named organisations

4

Construction and building materialsLaboratory supplies

Typical roles

Flavouring
See products using 2-Mercaptoethanol →