2-(ethylthio)propanoic acid

2-(乙硫基)丙酸

Also known as: 2-ethylsulfanylpropanoic acid, 2-ethylsulfanyl-propionic acid, 2-methyl-3-thiapentanoic acid, Propanoic acid, 2-(ethylthio)-, Albb-004307, S-Aethylthiomilchsaeure, 2-Aethylmercapto-propionsaeure

2-(ethylthio)propanoic acid (CAS 20461-87-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H10O2S and a molecular weight of 134.19700 g/mol. It is also known as 2-ethylsulfanylpropanoic acid, 2-ethylsulfanyl-propionic acid and 2-methyl-3-thiapentanoic acid. Key properties include a boiling point of 227.9ºC at 760 mmHg, a density of 1.117g/cm3 and a flash point of 91.6ºC. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20461-87-4
Jingsj CID
J-1401781-2
Molecular Formula
C5H10O2S
Chinese Name
2-(乙硫基)丙酸
Molecular Weight
134.19700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point227.9ºC at 760 mmHg
Density1.117g/cm3
Flash Point91.6ºC

GHS Safety & Compliance

CorrosionSignal word: Danger

Frequently Asked Questions

What is the CAS number of 2-(ethylthio)propanoic acid?

The CAS number of 2-(ethylthio)propanoic acid is 20461-87-4.

What are the molecular formula and molecular weight of 2-(ethylthio)propanoic acid?

2-(ethylthio)propanoic acid has molecular formula C5H10O2S and molecular weight 134.19700 g/mol.

Is 2-(ethylthio)propanoic acid hazardous?

2-(ethylthio)propanoic acid has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "2-(ethylthio)propanoic acid (CAS 20461-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401781-2 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.