CAS: 123-31-9 Molecular Formula: C6H6O2 Molecular Weight (g/mol): 110.112 InChI Key: QIGBRXMKCJKVMJ-UHFFFAOYSA-N Synonym: hydroquinone,1,4-benzenediol,quinol,1,4-dihydroxybenzene,p-benzenediol,4-hydroxyphenol,p-hydroquinone,p-hydroxyphenol,p-dihydroxybenzene,benzoquinol PubChem CID: 785 ChEBI: CHEBI:17594 IUPAC Name: benzene-1,4-diol SMILES: C1=CC(=CC=C1O)O