| When hydrolyzed by mineral acids or emulsin, it yields glucose and hydroquinone. |
| Developing agents most readily available were metol, hydroquinone, and Phenidone. |
| The formation of the dimers is strongly favored by the contiguous presence of quinone and hydroquinone. |
| When phenol is oxidized in acid solution by chlorine, tetrachlorquinone is obtained, a compound also obtainable from hydroquinone. |
| The creams often contain dangerously high amounts of hydroquinone, a depigmenting chemical that can be harmful or fatal in large doses. |
| If Canadians are concerned about using hydroquinone, they can review the list of ingredients to determine if it is found in the product. |
