Benzophenone 3

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:
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.