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Benzophenone-n
Benzphenone-1 – benzophenone-12 (BP-1 –BP-12) are UVA/UVB absorbers. Some of them are used in sunscreens. * Benzophenone-1 (2,4-dihydroxybenzophenone) * Benzophenone-2 (2,2',4,4'-tetrahydroxybenzophenone) * Benzophenone-3 (oxybenzone) *Benzophenone-4 (sulisobenzone) *Benzophenone-5 Sulisobenzone (benzophenone-4) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. Its sodium Sodium is a chemical element with the symbol Na (from Latin ''natrium'') and atomic n ... (sulisobenzone sodium) * Benzophenone-6 (2,2'-dihydroxy-4,4'-dimethoxybenzophenone) * Benzophenone-7 (5-chloro-2-hydroxybenzophenone) * Benzophenone-8 (dioxybenzone) * Benzophenone-9 (sodium 2,2'-dihydroxy-4,4'-dimethoxybenzophenone-5,5'-disulfonate) * Benzophenone-10 (mexenone, 2-hydroxy-4-methoxy-4'-methyl-benzophenone) * Benzophenone-11 (benzophenone-2 and benzophenone-6) [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nanometer, nm (with a corresponding frequency around 30 Hertz, PHz) to 400 nm (750 Hertz, THz), shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionization, ionize atoms, it can cause chemical reactions and causes many substances to glow or fluorescence, fluoresce. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules. Short-wave ultraviolet light damages DNA and sterilizes surf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunscreen
Sunscreen, also known as sunblock or sun cream, is a photoprotective topical product for the skin that mainly absorbs, or to a much lesser extent reflects, some of the sun's ultraviolet (UV) radiation and thus helps protect against sunburn and most importantly prevent skin cancer. Sunscreens come as lotions, sprays, gels, foams (such as an expanded foam lotion or whipped lotion), sticks, powders and other topical products. Sunscreens are common supplements to clothing, particularly sunglasses, sunhats and special sun protective clothing, and other forms of photoprotection (such as umbrellas). The first sunscreen in the world was invented in Australia, by chemist H.A. Milton Blake, in 1932 formulating with the UV filter 'salol' (phenyl salicylate) at a concentration of 10%. Its protection was verified by the University of Adelaide and it was also produced commercially by Blake's company, Hamilton Laboratories. Despite sunscreen being relatively new, sun protection practices ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzophenone-3
Oxybenzone or benzophenone-3 or BP-3 (trade names Milestab 9, Eusolex 4360, Escalol 567, KAHSCREEN BZ-3) is an organic compound. It is a pale-yellow solid that is readily soluble in most organic solvents. Oxybenzone belongs to the class of aromatic ketones known as benzophenones. It is widely used in plastics, toys, furniture finishes, and other products to limit UV degradation. Sunscreens containing Oxybenzone have been banned from sale in Hawaii since 2021 due to its environmental effects, such as mortality in developing coral, coral bleaching, genetic damage to coral and marine organisms. NGO's such as EWG, the Environmental Working Group, have petitioned the US FDA to ban the ingredient citing hormonal disruption, cancer related concerns and the FDA's previous ruling in 2021 declaring that it is not GRASE (Generally Recognised As Safe and Effective). Structure and electronic structure Being a conjugated molecule, oxybenzone absorbs light at lower energies than many arom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzophenone-4
Sulisobenzone (benzophenone-4) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. Its sodium salt, sulisobenzone sodium, is also referred to as benzophenone-5 Sulisobenzone (benzophenone-4) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. Its sodium Sodium is a chemical element with the symbol Na (from Latin ''natrium'') and atomic n .... References Benzenesulfonic acids Sunscreening agents Phenols Phenol ethers Benzophenones {{ketone-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzophenone-5
Sulisobenzone (benzophenone-4) is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. Its sodium salt, sulisobenzone sodium, is also referred to as benzophenone-5. References Benzenesulfonic acids Sunscreening agents Phenols Phenol ethers Benzophenones {{ketone-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benzophenone-8
Dioxybenzone (benzophenone-8) is an organic compound used in sunscreen to block UVB and short-wave UVA (ultraviolet) rays. 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 Isopropyl alcohol (IUPAC name propan-2-ol and also called isopropanol or 2-propanol) is a colorless, flammable organic compound with a pungent alcoholic odor. As an isopropyl group linked to a hydroxyl group (chemical formula ) it is the simple .... References Phenols Sunscreening agents Phenol ethers Benzophenones {{dermatologic-drug-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
