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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.
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 ...
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.
Other benzophenone derivatives like avobenzone, benzophenone: These are related to oxybenzone, and “often used in sunscreens to absorb UV radiation,” says Rogers. “Some research suggests ...
4,4’-Dichlorobenzophenone is prepared by the acylation of chlorobenzene with 4-chlorobenzoyl chloride. The conversion is typically conducted in the presence of an aluminium chloride catalyst in a petroleum ether solvent. ClC 6 H 5 C(O)Cl + C 6 H 5 Cl → (ClC 6 H 4) 2 CO + HCl
In addition to oxybenzone, there are other sunscreen ingredients, known as chemical UV filters, that can also be harmful to corals and coral reefs and other marine life. They are: Benzophenone-1, Benzophenone-8, OD-PABA, 4-Methylbenzylidene camphor, 3-Benzylidene camphor, nano-Titanium dioxide, nano-Zinc oxide, Octinoxate, and Octocrylene. [52]
Megan Liu, lead study author and science and policy manager at Toxic-Free Future, tells Yahoo Life that this was a “minor point” in the study. “We feel bad that this happened,” she adds.
Joe Rogan says he’s ‘genuinely concerned’ about drone sightings after new theory emerges