Avobenzone CAS #70356-09-1
Avobenzone is a sunscreen agent that protects against the full spectrum of UV light. Of all sunscreen agents, avobenzone has one of the largest absorbance spectrums, absorbing light between 320 – 400 nm (peak absorption ~ 360 nm). Exposure to UV rays is a leading cause of skin cancer, and so use of an effective sunscreen, like avobenzone or avobenzone in combination with other agents, helps to lower risk of developing skin cancer. Avobenzone is specifically the most effective sunscreen agent against UVA rays. Avobenzone is susceptible to photodegredation, and therefore it is important that avobenzone be combined with photostabilizers in the final sunscreen product. It’s been considered a relatively safe chemical, but recent research suggests otherwise. Avobenzone degrades in the sun, resulting in the release of free radicals that may actually increase the risk for cancer.
Avobenzone CAS #70356-09-1
| Avobenzone Basic information |
| Overview?Application?Properties?Toxicity?References |
| Product Name: | Avobenzone |
| Synonyms: | AVOBENZONE;EUSOLEX(R) 9020;4-tert-butyl-4′-methoxy-dibenzoylmethane;4-T-BUTYL-4′-METHOXY-DIBENZOYLMETHANE;1-(4-(1,1-Dimethylethyl)phenyl)-3-(4-methoxyphenyl)-1,3-propanedione;1-(4-TERT-BUTYLPHENYL)-3-(4-METHOXYPHENYL) 1,3-PROPANEDIOL;1-(P-T-BUTYLPHENYL)-3-(P-METHOXYPHENYL)-1,3-PROPANEDIONE;1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)-3-propanedione |
| CAS: | 70356-09-1 |
| MF: | C20H22O3 |
| MW: | 310.39 |
| EINECS: | 274-581-6 |
| Product Categories: | API;Pharmaceutical intermediates;Aromatics;Intermediates & Fine Chemicals;Pharmaceuticals;cosmetic raw material;UV-Absorber;Organics;70356-09-1 |
| Mol File: | 70356-09-1.mol |
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| Avobenzone Chemical Properties |
| Melting point | 81-84???C |
| Boiling point | 463.6??35.0 ??C(Predicted) |
| density | 1.079 |
| vapor pressure | 0Pa at 25?? |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly, Heated, Sonicated) |
| form | Solid |
| pka | 9.74??0.13(Predicted) |
| color | White to Pale Yellow |
| Water Solubility | 27??g/L at 20?? |
| ??max | 356nm(EtOH)(lit.) |
| Merck | 14,888 |
| InChIKey | GTIRDWBOUTYFQO-UHFFFAOYSA-N |
| LogP | 6.1 at 20?? |
| CAS DataBase Reference | 70356-09-1(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3-Propanedione, 1-[4-(1,1-dimethylethyl)phenyl]-3-(4-methoxyphenyl)- (70356-09-1) |
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