Catechol
Also known as: 1,2-Benzenediol, 1,2-Dihydroxybenzene, Pyrocatechol, o-Dihydroxybenzene, 2-Hydroxyphenol, Benzene-1,2-diol
Catechol (CAS 120-80-9) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C6H6O2 and a molecular weight of 110.111 g/mol. Key properties include a melting point of 103-106 ºC, a boiling point of 245 ºC, a density of 1.3±0.1 g/cm3 and a flash point of 131 ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 120-80-9
- Jingsj CID
- J-1001874-1
- Molecular Formula
- C6H6O2
- Molecular Weight
- 110.111 g/mol
- Category
- Alcohols
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 103-106 ºC |
|---|---|
| Boiling Point | 245 ºC |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 131 ºC |
| Exact Mass | 110.036781 |
| PSA | 40.46000 |
| LogP | 0.88 |
| Additional Property | 3.8 (vs air) |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.612 |
| Additional Property | 430 g/L (20 ºC) |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H332 — Harmful if inhaled
- H341 — Suspected of causing genetic defects
Customs & Trade Information
| HS Code | 2907291000 |
|---|---|
| Summary | 2907291000 pyrocatechol。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。Lowest tariff:4.0%。General tariff:11.0% |
Frequently Asked Questions
What is the CAS number of Catechol?
The CAS number of Catechol is 120-80-9.
What are the molecular formula and molecular weight of Catechol?
Catechol has molecular formula C6H6O2 and molecular weight 110.111 g/mol.
Is Catechol hazardous?
Catechol has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H315 — Causes skin irritation.
What are the upstream and downstream products of Catechol?
For Catechol, Upstream Products: 2-Iodophenol, Phenol, 1,2-Dimethoxybenzene; Downstream Products: Dibenzo-18-crown-6.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Catechol (CAS 120-80-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1001874-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.