Benzophenone 4 is an ingredient in some sunscreens which protects the skin from damage by UVB and UVA ultraviolet light. It is a water soluble broad band UV‐filter. It has worldwide approval for skin protection and it is widely used in sun preparations. It can also offer protection of colorants against fading and help stabilize fragrances and active ingredients against oxidation.
| Product name: | Sulisobenzone | |||
| Chemical name: | 4-Hydroxy-2-methoxy-5-(oxo-phenylmethyl)benzenesulfonic acid | |||
| INCI: | Sulisobenzone | |||
| CAS: | 4065-45-6 | |||
| EINECS: | 223-772-2 | |||
| USAN: | Sulisobenzone | |||
| Chemical structure: |  |
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| UV-absorption range: | 290 – 360 nm | |||
| Molecular Formula: | C14H12O6S | |||
| Molecular weight: | 308.304 | |||
| Applications: | Assist in protection of skin from damaging UV-A and UV-B radiation. Component of Sunscreens, make up creams, hand and face lotions. | |||
Technical Data
| Appearance: | Yellow to beige powder |
| Odor: | Characteristic odor |
| Loss on drying: | <=5% (w/w) |
| Assay by GC /HPLC: | >= 97.0 – 103.0% (w/w) |
| Melting point: | 48.5°C |
| Heavy metals content: | <= 20 ppm |
| Solubility: | Soluble in water, glycerine, propylene glycol, ethyl alcohol, IPM etc. |
| Regulatory status max concentration: | US: Up to 2-3%, Europe: Up to 5%, Japan: Up to 10%, China: Up to 5%, Canada: Up to 5% |
| 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. |