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Name: 2,2'-Dihydroxy-4,4'-dimethoxybenzophenone   

CAS NO: 131-54-4

Purity: 99% min

MF: C15H14O5

MW:274.269

BP:439.3±45.0 °C at 760 mmHg

Density:1.3±0.1 g/cm3

惭笔:&苍产蝉辫;133-136&苍产蝉辫;°颁(濒颈迟.)

EINECS:205-027-3

Appearance: Light yellow crystalline powder

Package: 25g, 100g, 500g, bulk package 

Application:365bet娱乐 intermediate

Other name:

Cyasorb UV;

benzophenone-6;

Dihydroxy-Dimethoxy-Benzophenone;

2,2'-DIBROMO-9,9'-SPIROBIFLUOROENE;

Bis(2-hydroxy-4-methoxyphenyl)methanone;

4,4'-di-methoxy,2,2'-di-ol-benzophenone;

More information of 131-54-4

Storage:It should be stored in a well-closed container at low temperature, keep away from moisture, heat and light.

 Application of 131-54-4

 Used as a pharmaceutical intermediates.

  The product is benzophenone UV absorbers. UV absorbers are currently used in the most common light stabilizers, which are a class that can strongly and selectively absorb high-energy UV light and perform energy conversion in the form of thermal energy or harmless low-energy radiation to release or consume energy The substance. Benzophenone containing an ortho hydroxyl group absorbs only ultraviolet light below 380 nm, and hardly absorbs visible light. The product in the 270-380nm wavelength range has a strong absorption, suitable for PVC, acrylic resin, epoxy resin, phenolic resin, nitrocellulose and polyurethane. But the goods can absorb a part of the visible light, so that products slightly yellow.

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