Benzenesulfonic acid
苯磺酸
Also known as: Besylic acid, Phenylsulfonic acid, Benzenemonosulfonic acid, Benzenesulphonic acid, 17-120A, BL70, Benzolsulfonsaeure, MFCD00011689
Benzenesulfonic acid (CAS 98-11-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H6O3S and a molecular weight of 158.175 g/mol. It is also known as Besylic acid, Phenylsulfonic acid and Benzenemonosulfonic acid. Key properties include a melting point of 30-60 °C, a boiling point of 137℃, a density of 1.4±0.1 g/cm3 and a flash point of >230 °F. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 98-11-3
- Jingsj CID
- J-1324916-6
- Molecular Formula
- C6H6O3S
- Chinese Name
- 苯磺酸
- Molecular Weight
- 158.175 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 30-60 °C |
|---|---|
| Boiling Point | 137℃ |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | >230 °F |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Benzenesulfonic acid?
The CAS number of Benzenesulfonic acid is 98-11-3.
What are the molecular formula and molecular weight of Benzenesulfonic acid?
Benzenesulfonic acid has molecular formula C6H6O3S and molecular weight 158.175 g/mol.
Is Benzenesulfonic acid hazardous?
Benzenesulfonic 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. "Benzenesulfonic acid (CAS 98-11-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1324916-6 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.