4-Mercaptophenylboronic acid
Also known as: (4-Sulfanylphenyl)boronic acid, 4-Mercaptobenzeneboronic Acid, Dihydroxy(4-mercaptophenyl)borane, Boronic acid, B-(4-mercaptophenyl)-, MFCD03093887
4-Mercaptophenylboronic acid (CAS 237429-33-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H7BO2S and a molecular weight of 153.995 g/mol. Key properties include a melting point of >230 °C(lit.), a boiling point of 329.4±44.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 153.0±28.4 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.
- CAS No.
- 237429-33-3
- Jingsj CID
- J-49201-3
- Molecular Formula
- C6H7BO2S
- Molecular Weight
- 153.995 g/mol
- Category
- Organic Acids
- Last updated
- 11/3/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | >230 °C(lit.) |
|---|---|
| Boiling Point | 329.4±44.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 153.0±28.4 °C |
| Exact Mass | 154.025986 |
| PSA | 79.26000 |
| LogP | 1.89 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.595 |
Customs & Trade Information
| HS Code | 2931900090 |
|---|---|
| Summary | 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Mercaptophenylboronic acid?
The CAS number of 4-Mercaptophenylboronic acid is 237429-33-3.
What are the molecular formula and molecular weight of 4-Mercaptophenylboronic acid?
4-Mercaptophenylboronic acid has molecular formula C6H7BO2S and molecular weight 153.995 g/mol.
What are the upstream and downstream products of 4-Mercaptophenylboronic acid?
For 4-Mercaptophenylboronic acid, Upstream Products: Trifluoroacetic acid, 4-Bromothiophenol, (4-Bromophenylthio)dimethyl-tert-butylsilane; Downstream Products: 4-(Methylthio)phenylboronic 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. "4-Mercaptophenylboronic acid (CAS 237429-33-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49201-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.