31. It is a derivative of hydroquinone , substituted with a " tert "-butyl group. 32. Skin bleaches contained caustic chemicals such as hydroquinone , which suppressed the production of melanin in the skin. 33. Thus, the two products are 1-( beta-D-ribofuranosyl ) nicotinamide and hydroquinone . 34. However, Chua said beauticians could dispense and administer skin whiteners which contained less than two per cent hydroquinone . 35. Hydroquinone can undergo mild oxidation to convert to the compound Reduction of quinone reverses this reaction back to hydroquinone.36. Hydroquinone can undergo mild oxidation to convert to the compound Reduction of quinone reverses this reaction back to hydroquinone . 37. The condition is most often associated with alkaptonuria but can occur from exogenous administration of phenol complexes like hydroquinone . 38. The disodium diphenolate salt of hydroquinone is used as an alternating comonomer unit in the production of the polymer PEEK. 39. While using hydroquinone as a lightening agent can be effective with proper use, it can also cause skin sensitivity. 40. The beetle produces and stores hydroquinone and hydrogen peroxide, in two separate reservoirs in the rear tip of its abdomen.
