Methyl benzenesulfonate
Also known as: Methyl Besylate, Benzenesulfonic acid, methyl ester, Benzenesulfonic acid methyl ester, Methyl benzenesulphonate, methyl benzene-sulfonate, methyl benzenesulphonate, EINECS 201-256-8, MFCD00014737
Methyl benzenesulfonate (CAS 80-18-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8O3S and a molecular weight of 172.202 g/mol. Key properties include a melting point of -4 °C, a boiling point of 269.1±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 116.6±18.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 80-18-2
- Jingsj CID
- J-1361116-0
- Molecular Formula
- C7H8O3S
- Molecular Weight
- 172.202 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -4 °C |
|---|---|
| Boiling Point | 269.1±9.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 116.6±18.7 °C |
| Exact Mass | 172.019409 |
| PSA | 51.75000 |
| LogP | 0.84 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.522 |
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Methyl benzenesulfonate?
The CAS number of Methyl benzenesulfonate is 80-18-2.
What are the molecular formula and molecular weight of Methyl benzenesulfonate?
Methyl benzenesulfonate has molecular formula C7H8O3S and molecular weight 172.202 g/mol.
What are the upstream and downstream products of Methyl benzenesulfonate?
For Methyl benzenesulfonate, Upstream Products: Methanol, Benzenesulfonyl chloride, Sodium methoxide; Downstream Products: Sodium benzenesulfonate, Chloromethane, Methyl bromide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl benzenesulfonate (CAS 80-18-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361116-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.