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Ethyl thioglycolate

Also known as: Ethyl 2-mercaptoacetate, Ethyl mercaptoacetate, Ethyl alpha-mercaptoacetate, Ethyl sulfanylacetate, Thioglycolic acid ethyl ester, Mercaptoacetic acid ethyl ester, Ethyl α-mercaptoacetate

Ethyl thioglycolate (CAS 623-51-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C4H8O2S and a molecular weight of 120.170 g/mol. Key properties include a melting point of -80 °C, a boiling point of 157.8±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 47.8±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
623-51-8
Jingsj CID
J-1993596-7
Molecular Formula
C4H8O2S
Molecular Weight
120.170 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point-80 °C
Boiling Point157.8±13.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point47.8±0.0 °C
Exact Mass120.024498
PSA65.10000
LogP1.18
Vapor Pressure2.7±0.3 mmHg at 25°C
Refractive Index1.452

GHS Safety & Compliance

Flammable / Acute ToxicitySignal word: Danger
  • H226 — Flammable liquid and vapour
  • H301 — Toxic if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation

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 Ethyl thioglycolate?

The CAS number of Ethyl thioglycolate is 623-51-8.

What are the molecular formula and molecular weight of Ethyl thioglycolate?

Ethyl thioglycolate has molecular formula C4H8O2S and molecular weight 120.170 g/mol.

Is Ethyl thioglycolate hazardous?

Ethyl thioglycolate has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H315 — Causes skin irritation.

What are the upstream and downstream products of Ethyl thioglycolate?

For Ethyl thioglycolate, Upstream Products: Ethanol, Thioglycolic acid, 1-Acetonylpyridinium chloride; Downstream Products: ethyl 6-bromo-1-benzothiophene-2-carboxylate, ethyl 4-methyl-2-phenyl-1,3-thiazole-5-carboxylate, 1,3-Thiazinane-2-thione.

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

Last updated:

How to cite: Jingsj. "Ethyl thioglycolate (CAS 623-51-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1993596-7 (accessed 2026-11-09).

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