Benzophenone-3
CAS 131-57-7
EC 205-031-5
Formula C14H12O3
MW 228.24 g/mol
UV Absorbers & Stabilizers Personal Care & CosmeticsPlastics & PolymersCoatings, Adhesives, Sealants & Elastomers UV Protection & StabilizationAntioxidant & Stabilizer
Description
Benzophenone-3 (CAS 131-57-7), also known as Oxybenzone, HMB, or by trade names such as Uvinul M40 and UF 3, is an organic UV absorber that converts UV radiation into harmless heat energy. It is registered under EC 205-031-5 and classified within the UV Absorbers and Stabilizers category.
In sunscreen and personal care formulations, Benzophenone-3 absorbs both UVA and UVB radiation, providing broad-spectrum photoprotection at concentrations typically up to 10%. In polymer coatings and plastics, it functions as a light stabilizer by interrupting photodegradation pathways, extending the service life of the substrate. It also serves as a photoinitiator in UV-curable adhesive and sealant systems.
Benzophenone-3 is supplied as a crystalline powder and falls under REACH registration requirements for EU market supply. It is subject to concentration restrictions under EU Cosmetics Regulation 1223/2009. Standard packaging includes 25 kg bags, with documentation available to support regulatory submissions.
In sunscreen and personal care formulations, Benzophenone-3 absorbs both UVA and UVB radiation, providing broad-spectrum photoprotection at concentrations typically up to 10%. In polymer coatings and plastics, it functions as a light stabilizer by interrupting photodegradation pathways, extending the service life of the substrate. It also serves as a photoinitiator in UV-curable adhesive and sealant systems.
Benzophenone-3 is supplied as a crystalline powder and falls under REACH registration requirements for EU market supply. It is subject to concentration restrictions under EU Cosmetics Regulation 1223/2009. Standard packaging includes 25 kg bags, with documentation available to support regulatory submissions.
Physical Properties
| Melting Point | 66 °C |
| Boiling Point | 370 °C |
| Density | 1,3 g/cm 3 |
| Flash Point | 216°C |
| Appearance | white to light yellow crystalline powder |
| Color | White to light yellow |
| Odor | ylsh. cryst., rose-like odor |
| Form | Crystalline Powder |
| Water Solubility | <0.1 g/100 mL at 20 ºC |
| Vapor Pressure | 0.001Pa@25°C |
| Refractive Index | 1.5805 (estimate) |
| Log P | 3.45 at 40℃ |
Safety & Handling (Learn More)
Warning GHS07 GHS09 GHS08
H
H315H317H319H335H361H400H410H411
P
P203P261P264P271P272P273P280P318P319P321P391P405P501P264+P265P302+P352P304+P340P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29145000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 13 - Non Combustible Solids |
| WGK (Germany) | 2 |
Other Names
Oxybenzone(2-hydroxy-4-methoxyphenyl)-phenylmethanoneOxibenzonaUvinul M40HMBUF 3Uvinul M 40Cyasorb UV 9
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Raw Materials
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