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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.
Benzophenone is a naturally occurring organic compound with the formula (C 6 H 5) 2 CO, generally abbreviated Ph 2 CO. Benzophenone has been found in some fungi, fruits and plants, including grapes. [4] It is a white solid with a low melting point and rose-like odor [5] that is soluble in organic solvents. Benzophenone is the simplest ...
Metabolic pathway of Benzophenone-3. Benzophenones (BPs) are widely used in UV filters, fragrance enhancers, and plastic additives. The major sources of BP-3 are reported to be human recreational activities and wastewater treatment plant (WWTP) effluents. The anionic forms of both BP-3 and 4-OH-BP3 can undergo direct photodegradation. The ...
Many ketones contain the benzoyl group. They have the formula C 6 H 5 CO–R, an important example being benzophenone. Benzoyl esters and amides are common in organic chemistry. The esters are used as a protecting groups in organic synthesis, [4] which can be easily removed by hydrolysis in dilute basic solution.
Benzphenone-1 – benzophenone-12 (BP-1 –BP-12) are UVA/UVB absorbers. Some of them are used in sunscreens. Benzophenone-3 (oxybenzone) Benzophenone-4 (sulisobenzone)
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As part of revised guidelines for sunscreens in the EU, there is a requirement to provide the consumer with a minimum level of UVA protection in relation to the SPF. This should be a UVA protection factor of at least 1/3 of the SPF to carry the UVA seal. [90] The 1/3 threshold derives from the European Commission recommendation 2006/647/EC. [91]
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.