3-Chlorocatechol
Also known as: 1,2-Benzenediol, 3-chloro-, 1,2-Dihydroxy-3-chlorobenzene, 1-Chloro-2,3-dihydroxybenzene, 2-Hydroxy-3-chlorophenol, 3-Chlorobenzene-1,2-diol, 3-Chloropyrocatechol, 3-Monochlorocatechol
3-Chlorocatechol (CAS 4018-65-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H5ClO2 and a molecular weight of 144.556 g/mol. Key properties include a melting point of 49ºC, a boiling point of 237.0±20.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 97.1±21.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4018-65-9
- Jingsj CID
- J-43425-3
- Molecular Formula
- C6H5ClO2
- Molecular Weight
- 144.556 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 49ºC |
|---|---|
| Boiling Point | 237.0±20.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 97.1±21.8 °C |
| Exact Mass | 143.997803 |
| PSA | 40.46000 |
| LogP | 1.76 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.629 |
Frequently Asked Questions
What is the CAS number of 3-Chlorocatechol?
The CAS number of 3-Chlorocatechol is 4018-65-9.
What are the molecular formula and molecular weight of 3-Chlorocatechol?
3-Chlorocatechol has molecular formula C6H5ClO2 and molecular weight 144.556 g/mol.
What are the upstream and downstream products of 3-Chlorocatechol?
For 3-Chlorocatechol, Upstream Products: 3-Chlorosalicylaldehyde, Chlorobenzene, 1-Chloro-2,3-dimethoxybenzene; Downstream Products: 3-Chloro-2-methoxyphenol, 2-Chloro-6-methoxyphenol, 1-Chloro-2,3-dimethoxybenzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Chlorocatechol (CAS 4018-65-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43425-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.