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This latter cumene converts into cumene radical and feeds back into subsequent chain formations of cumene hydroperoxides. A pressure of 5 atm is used to ensure that the unstable peroxide is kept in liquid state. Cumene hydroperoxide undergoes a rearrangement reaction in an acidic medium (the Hock rearrangement) to give phenol and acetone. In ...
Phenol and its vapors are corrosive to the eyes, the skin, and the respiratory tract. [61] Its corrosive effect on skin and mucous membranes is due to a protein-degenerating effect. [50] Repeated or prolonged skin contact with phenol may cause dermatitis, or even second and third-degree burns. [62] Inhalation of phenol vapor may cause lung ...
Hydroquinone is used as a topical application in skin whitening to reduce the color of skin. It does not have the same predisposition to cause dermatitis as metol does. This is a prescription-only ingredient in some countries, including the member states of the European Union under Directives 76/768/EEC:1976. [23] [24]
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Basal-cell carcinoma is a common skin cancer and occurs mainly in fair-skinned patients with a family history of this cancer. Sunlight is a factor in about two-thirds of these cancers; therefore, doctors recommend sunscreens with at least SPF 30.
Monobenzone, also called 4-(Benzyloxy)phenol and monobenzyl ether of hydroquinone (MBEH) is an organic chemical in the phenol family with chemical formula C 6 H 5 CH 2 OC 6 H 4 OH. [1] [2] It is used as a topical drug for medical depigmentation. [3] It is a colourless solid that is classified as the monobenzyl ether of hydroquinone.
In fact, one out of five people will hear a doctor say “you have skin cancer” by the age of 70. However, the survival rate is high for most skin cancers if they’re detected and treated early ...
Scaling back treatment for three kinds of cancer can make life easier for patients without compromising outcomes, doctors reported at the world’s largest cancer conference. It’s part of a long ...