3-(Acetylthio)propanoic acid
Also known as: 3-(Acetylthio)propionic acid, 3-acetylsulfanylpropanoic acid, 3-acetylsulfanyl-propionic acid, S-Acetyl-3-mercaptopropionic acid, Thioacetic Acid S-(2-Carboxyethyl) Ester, NSC 96653, Propanoic acid, 3-(acetylthio)-
3-(Acetylthio)propanoic acid (CAS 41345-70-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H8O3S and a molecular weight of 148.18000 g/mol. Key properties include a melting point of 48-52ºC, a boiling point of 272.8ºC at 760 mmHg, a density of 1.268g/cm3 and a flash point of 110ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 41345-70-4
- Jingsj CID
- J-1312539-8
- Molecular Formula
- C5H8O3S
- Molecular Weight
- 148.18000 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 48-52ºC |
|---|---|
| Boiling Point | 272.8ºC at 760 mmHg |
| Density | 1.268g/cm3 |
| Flash Point | 110ºC |
| Exact Mass | 148.01900 |
| PSA | 79.67000 |
| LogP | 0.74080 |
| Refractive Index | 1.507 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 3-(Acetylthio)propanoic acid?
The CAS number of 3-(Acetylthio)propanoic acid is 41345-70-4.
What are the molecular formula and molecular weight of 3-(Acetylthio)propanoic acid?
3-(Acetylthio)propanoic acid has molecular formula C5H8O3S and molecular weight 148.18000 g/mol.
Is 3-(Acetylthio)propanoic acid hazardous?
3-(Acetylthio)propanoic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3-(Acetylthio)propanoic acid?
For 3-(Acetylthio)propanoic acid, Upstream Products: Acetyl chloride, 3-Mercaptopropionic acid, 3-Bromopropanoic acid; Downstream Products: N-Succinimidyl S-acetylthiopropionate, 3-Mercaptopropionic acid, 3,3'-Dithiodipropionic 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. "3-(Acetylthio)propanoic acid (CAS 41345-70-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1312539-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.