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Thioglycolic acid

Also known as: Mercaptoacetic acid, 2-Mercaptoacetic acid, 2-Thioglycolic acid, Thioglycollic acid, Mercaptoethanoic acid, TGA

Thioglycolic acid (CAS 68-11-1) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C2H4O2S and a molecular weight of 92.117 g/mol. Key properties include a melting point of −16 °C(lit.), a boiling point of 225.5±0.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 99.8±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68-11-1
Jingsj CID
J-22649-3
Molecular Formula
C2H4O2S
Molecular Weight
92.117 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−16 °C(lit.)
Boiling Point225.5±0.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point99.8±22.6 °C
Exact Mass91.993202
PSA76.10000
LogP0.09
Additional Property3.2 (vs air)
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.503
Additional Propertysoluble

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger
  • H301 — Toxic if swallowed
  • H311 — Toxic in contact with skin
  • H331 — Toxic if inhaled
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Thioglycolic acid?

The CAS number of Thioglycolic acid is 68-11-1.

What are the molecular formula and molecular weight of Thioglycolic acid?

Thioglycolic acid has molecular formula C2H4O2S and molecular weight 92.117 g/mol.

Is Thioglycolic acid hazardous?

Thioglycolic acid has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.

What are the upstream and downstream products of Thioglycolic acid?

For Thioglycolic acid, Upstream Products: Glycolic acid, Bromoacetic acid, Dithiodiglycolic acid; Downstream Products: 2-(Cyanomethylthio)acetic acid.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Thioglycolic acid (CAS 68-11-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22649-3 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.