Hydroquinone is a benzenediol comprising benzene core carrying two hydroxyl substituents para to each other. It is a white crystalline substance when pure and is highly soluble in water.

| Appearance | White Needle Crystal |
| Solubility in CH3COOH | Colorless, Transparent |
| Residue on Ignition | 0.001 % |
| Iron | 0.001 % |
| Heavy Metal as Pub | 0.001 % |
| Purity | 99.7 % |
· The largest demand for hydroquinone is as a photographic developer, principally for black-and- white film, lithography, photochemical machining, microfilm, and X-ray film.
· Hydroquinone is used as a topical application in skin whitening to reduce the color of skin.
Drums