2-(ethylthio)propanoic acid
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. 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. It is classified under GHS with signal word Danger and hazard statements H318 — Causes serious eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 20461-87-4
- Jingsj CID
- J-1401781-3
- Molecular Formula
- C5H10O2S
- Molecular Weight
- 134.19700 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 227.9ºC at 760 mmHg |
|---|---|
| Density | 1.117g/cm3 |
| Flash Point | 91.6ºC |
| Exact Mass | 134.04000 |
| PSA | 62.60000 |
| LogP | 1.21260 |
| Vapor Pressure | 0.0272mmHg at 25°C |
| Refractive Index | 1.49 |
GHS Safety & Compliance
- H318 — Causes serious eye damage
Customs & Trade Information
| HS Code | 2930909090 |
|---|---|
| Summary | 2930909090. 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 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 and hazard statements H318 — Causes serious eye damage.
What are the upstream and downstream products of 2-(ethylthio)propanoic acid?
For 2-(ethylthio)propanoic acid, Upstream Products: Diethyl sulfate, 2-Mercaptopropionic acid, Bromoethane; Downstream Products: 2-(ethylsulfonyl)propanoic acid, 2-(ethylthio)propanoic 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. "2-(ethylthio)propanoic acid (CAS 20461-87-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1401781-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.