Category
Chemical Primary Standard
CAS Number
123-31-9
Molecular Formula
C6H6O2
Molecular Weight
110.11 g/mol
Synonym

 Benzene-1,4-diol; 1,4-Benzoquinol; 1,4-Dihydroxybenzene; Dihydroquinone; Eldopacque; Eldopaque;Eldopaque Forte; Eldoquin; 4-Hydroxyphenol; p-Hydroxyphenol; p-Phenylenediol; p-Quinol; 

Keywords
Pharmaceutical Standards
Aromatics
Intermediates
Slide_1

Hydroquinone is an aromatic organic compound with the formula C₆H₄(OH)₂, featuring two hydroxyl (–OH) groups positioned opposite each other on a benzene ring. It is commonly used as a reducing agent, antioxidant, and in the production of photographic developers, polymers, and skin-lightening formulations.