Catechol
CAS 120-80-9C6H6O2110.11 g/mol
Catechol is a benzenediol comprising of a benzene core carrying two hydroxy substituents ortho to each other. It has a role as a genotoxin, an allelochemical and a plant metabolite. It is a conjugate acid of a catecholate(1-).
IUPAC: benzene-1,2-diol
PubChem
Physical & Chemical Properties
| Melting Point | 221 °F (NTP, 1992) |
| Boiling Point | 473 °F at 760 mmHg (sublimes) (NTP, 1992) |
| Density | 1.344 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Solubility | greater than or equal to 100 mg/mL at 70.7 °F (NTP, 1992) |
| Flash Point | 261 °F (NTP, 1992) |
| Vapor Pressure | 5 mmHg at 219 °F ; 10 mmHg at 244.9 °F (NTP, 1992) |
| Appearance | Solid; white; odorless. Sinks and mixes with water. (USCG, 1999) |
Data: PubChem · Last updated: 4/20/2026
GHS Classification
No GHS classification data available.
Classification data is sourced from ECHA.
Regulatory Compliance
TSCA
Listed
note: Status based on EPA TSCA Active Inventory · inventory name: TSCA Chemical Substance Inventory
View sourceGlobal Trade Intelligence
No trade flow data available for this chemical.
HS Code(s): 2907
Data: UN Comtrade
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