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Catechol

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Catechol molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 10 grades and pack sizes of Catechol (CAS 120-80-9). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS120-80-9
Molecular formulaC6H6O2
Molecular weight110.11 g/mol
IUPAC namebenzene-1,2-diol
Synonymspyrocatechol · 1,2-dihydroxybenzene · 1,2-benzenediol · benzene-1,2-diol · pyrocatechin · 2-hydroxyphenol
Safety & Hazards (GHS) Danger
Acute toxic Acute toxic Health hazard Health hazard
  • H301 Toxic if swallowed
  • H311 Toxic in contact with skin
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H341 Suspected of causing genetic defects
  • H350 May cause cancer
  • H302 Harmful if swallowed
  • H312 Harmful in contact with skin

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma 1,2-DIHYDROXYBENZENE, REAGENTPLUS(R), > 135011-5KG Request Quote
Sigma 1,2-Dihydroxybenzene, ReagentPlus, >=99% 135011-100G
135011-3KG
135011-500G
135011-5G		 Request Quote
Sigma CATECHOL, SUBLIMED, 99.5+% 430749-5G Request Quote
Sigma PYROCATECHOL 50550-100MG Request Quote
Sigma PYROCATECHOL, >=99% C9510-100G
C9510-1KG
C9510-500G		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.