4-Bromobenzenesulfonic acid
Also known as: 4-Bromobenzenesulfonic acid monohydrate, 4-Bromophenylsulfonic acid, p-Bromobenzenesulfonic acid, p-Bromophenylsulfonic acid, Benzenesulfonic acid, 4-bromo-, bromobenzene-4-sulfonic acid, para-bromobenzenesulfonic acid, para-bromophenylsulfonic acid
4-Bromobenzenesulfonic acid (CAS 138-36-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H5BrO3S and a molecular weight of 237.07200 g/mol. Key properties include a melting point of 90-93ºC(lit.) and a density of 1.846g/cm3. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.
- CAS No.
- 138-36-3
- Jingsj CID
- J-45317-8
- Molecular Formula
- C6H5BrO3S
- Molecular Weight
- 237.07200 g/mol
- Category
- Organic Acids
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 90-93ºC(lit.) |
|---|---|
| Density | 1.846g/cm3 |
| Exact Mass | 253.92500 |
| PSA | 71.98000 |
| LogP | 2.71230 |
| Refractive Index | 1.615 |
Customs & Trade Information
| HS Code | 2904909090 |
|---|---|
| Summary | HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Bromobenzenesulfonic acid?
The CAS number of 4-Bromobenzenesulfonic acid is 138-36-3.
What are the molecular formula and molecular weight of 4-Bromobenzenesulfonic acid?
4-Bromobenzenesulfonic acid has molecular formula C6H5BrO3S and molecular weight 237.07200 g/mol.
What are the upstream and downstream products of 4-Bromobenzenesulfonic acid?
For 4-Bromobenzenesulfonic acid, Upstream Products: Bromobenzene, 4-Bromobenzenesulfonyl chloride, 4-Bromothiophenol; Downstream Products: 4-Hydroxybenzenesulfonic acid, 4-Bromobenzenesulfonyl chloride, Resorcinol.
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-Bromobenzenesulfonic acid (CAS 138-36-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45317-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.