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p-benzoquinone; quinone

CAS 106-51-4 · C6H4O2
Hazard class
Danger — Toxic, Environmental hazard
Pictograms
ToxicEnvironmental hazard
H-statements
  • H331 Toxic if inhaled
  • H301 Toxic if swallowed
  • H335 May cause respiratory irritation
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H400 Very toxic to aquatic life
Common uses (US EPA CDR)
Polymerization promoter
Workplace exposure limits
NIOSH REL TWA 0.4 mg/m3 (0.1 ppm)
OSHA PEL TWA 0.4 mg/m3 (0.1 ppm) NIOSH S181 (II-4)
IDLH 100 mg/m3
Occupational exposure limits — NIOSH Pocket Guide.
Synonyms
p-benzoquinone · 1,4-BENZOQUINONE · Benzoquinone · Quinone · p-Quinone · cyclohexa-2,5-diene-1,4-dione · para-Benzoquinone · Chinone
Molecular weight
108.09 g/mol
Browse similar
Toxic · Environmental hazard
Data source
Harmonised classification ECHA — EU CLP Annex VI
Legally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.
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GHS/CLP classification from authoritative registries (ECHA Annex VI, PubChem). SNRL is a free chemical safety search. Browse categories · API · Console