4-Mercapto-4-methylpentanoic acid
Also known as: 4-Mercapto-4-methylvaleric acid, 4-Methyl-4-sulfanylpentanoic acid, Pentanoic acid, 4-mercapto-4-methyl-, 4-mercapto-4-methylpentanoic acid, 4-MERCAPTO-4-METHYLVALERIC ACID, I04-8314
4-Mercapto-4-methylpentanoic acid (CAS 140231-31-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H12O2S and a molecular weight of 148.223 g/mol. Key properties include a boiling point of 256.4±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 108.9±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 140231-31-8
- Jingsj CID
- J-1408673-8
- Molecular Formula
- C6H12O2S
- Molecular Weight
- 148.223 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 256.4±23.0 °C at 760 mmHg |
|---|---|
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 108.9±22.6 °C |
| Exact Mass | 148.055801 |
| PSA | 76.10000 |
| LogP | 1.38 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | 1.488 |
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 4-Mercapto-4-methylpentanoic acid?
The CAS number of 4-Mercapto-4-methylpentanoic acid is 140231-31-8.
What are the molecular formula and molecular weight of 4-Mercapto-4-methylpentanoic acid?
4-Mercapto-4-methylpentanoic acid has molecular formula C6H12O2S and molecular weight 148.223 g/mol.
What are the upstream and downstream products of 4-Mercapto-4-methylpentanoic acid?
For 4-Mercapto-4-methylpentanoic acid, Upstream Products: 2,2-Dimethylthiirane, Carbon dioxide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Mercapto-4-methylpentanoic acid (CAS 140231-31-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1408673-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.