Hazard classDanger — Health hazard, Irritant / harmful, Corrosive, Environmental hazard
PictogramsHealth hazardIrritant / harmfulCorrosiveEnvironmental hazard
H-statements- H351 Suspected of causing cancer
- H341 Suspected of causing genetic defects
- H302 Harmful if swallowed
- H318 Causes serious eye damage
- H317 May cause an allergic skin reaction
- H400 Very toxic to aquatic life
Common uses (US EPA CDR)Photosensitive agentIntermediateCorrosion inhibitorSolventPolymerization promoterAntioxidant
Workplace exposure limitsNIOSH REL C 2 mg/m3 [15-minute]
OSHA PEL TWA 2 mg/m3
IDLH 50 mg/m3Occupational exposure limits — NIOSH Pocket Guide.
Synonymshydroquinone · Benzene-1,4-diol · 1,4-benzenediol · Quinol · 1,4-Dihydroxybenzene · p-Hydroquinone · p-Hydroxyphenol · p-Benzenediol
Molecular weight110.11 g/mol
Data sourceHarmonised classification ECHA — EU CLP Annex VILegally binding EU classification adopted by ECHA under CLP Annex VI — the highest-confidence GHS source.