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Alkali metals reduce benzophenone to the deeply blue colored radical anion, diphenylketyl: [15] M + Ph 2 CO → M + Ph 2 CO •−. Generally sodium is used as the alkali metal. Sodium-benzophenone ketyl is used in the purification of organic solvents, particularly ethers, because it reacts with water and oxygen to give non-volatile products.
Oxybenzone or benzophenone-3 or BP-3 (trade names Milestab 9, Eusolex 4360, Escalol 567, KAHSCREEN BZ-3) is an organic compound belonging to the class of aromatic ketones known as benzophenones. It takes the form of pale-yellow crystals that are readily soluble in most organic solvents.
surfactant used as a detergent and emulsifier propane: propane CH 3 CH 2 CH 3: propellant (pressurized dispenser) paraben: preservative peg-20: a variety of Polyethylene glycol: often used as an ointment base polymethyl methacrylate (PMMA) [7] (C 5 O 2 H 8) n: palmitic acid: CH 3 (CH 2) 14 COOH paraffinum liquidum: petrolatum: C 15 H 15 N ...
In the U.S., under the Food, Drug, and Cosmetic Act and the Fair Packaging and Labeling Act, certain accurate information is a requirement to appear on labels of cosmetic products. [6] In Canada, the regulatory guideline is the Cosmetic Regulations. [7] Ingredient names must comply by law with EU requirements by using INCI names. [8]
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Benzophenone, the base structure of these sunscreening agents Benzphenone-1 – benzophenone-12 ( BP-1 –BP-12 ) are UV A/UVB absorbers. Some of them are used in sunscreens .
Sulisobenzone (benzophenone-4) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. [ 2 ] [ 3 ] Its sodium salt, sulisobenzone sodium , is also referred to as benzophenone-5 .
Dioxybenzone (benzophenone-8) is an organic compound used in sunscreen to block UVB and short-wave UVA (ultraviolet) rays. [2] It is a derivative of benzophenone. It is a yellow powder with a melting point of 68 °C. It is insoluble in water, but moderately soluble in ethanol and isopropanol.