Oxybenzone is a benzophenone derivative used as a sunscreen agent. It absorbs UVB and UVA II rays, resulting in a photochemical excitation and absorption of energy. Upon return to ground state, the absorbed energy results in emission of longer wavelength radiation and decreased skin penetration of radiation which reduces the risk of DNA damage. Benzophenone 3 is an organic compound used in sunscreens. It is a derivative of benzophenone. It forms colourless crystals that are readily soluble in most organic solvents. It is used as an ingredient in sunscreen and other cosmetics because it absorbs UV-A ultraviolet rays.
| Product name: | Benzophenone 3 | |||
| Chemical name: | (2-Hydroxy-4-methoxyphenyl)-phenylmethanone | |||
| INCI: | Oxybenzone | |||
| CAS: | 131-57-7 | |||
| EINECS: | 205-031-5 | |||
| USAN: | Oxybenzone | |||
| Chemical structure: |  |
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| UV-absorption range: | 288 – 326 nm | |||
| Molecular Formula: | C14H12O3 | |||
| Molecular weight: | 228.24 | |||
| Applications: | Oxybenzone absorbs UVB and UVA II rays, resulting in a photochemical excitation and absorption of energy. Upon return to ground state, the absorbed energy results in emission of longer wavelength radiation and decreased skin penetration of radiation which reduces the risk of DNA damage. | |||
Technical Data
| Appearance: | Pale Yellow Crystalline Powder |
| Odor: | Characteristic aromatic odor |
| Loss on drying: | <=0.5% (w/w) |
| Assay by GC /HPLC: | >= 98.0 (w/w) |
| Melting point: | Between 62°C to 65°C |
| Heavy metals content: | <= 20 ppm |
| Solubility: | Soluble in Acetone and hot methanol, insoluble in water |
| Pharmacopoeia information: | USP |
| Packaging: | 25 kg Carton Box |
| Storage recommendation: | Store away from incompatible substances. Incompabilities: Oxidizers (Strong): Fire and explosion hazard, protect from light. Shelf life three years from date of Original packaging under adequate storage conditions. |