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|Product Name:||2,2'-Dihydroxy-4,4'-dimethoxybenzophenone||CAS NO:||131-54-4|
|Appearance:||Pale Yellow Crystalline Powder||Assay:||99%|
active pharmaceutical ingredients,
pharmaceutical raw materials
2,2'-Dihydroxy-4,4'-dimethoxybenzophenone BENZOPHENONE-6 CAS 131-54-4 EINECS 205-027-3
2,2'-dihydroxy-4,4'-dimethoxy benzophenone Benzophenone UV absorber. Pale yellow crystals. Melting point 133-136 ℃. Dissolved in ethyl acetate, methyl ethyl ketone and toluene, insoluble in water. UV absorbers is currently the most widely used light stabilizers, this is a class capable of strong, selectively absorb high-energy ultraviolet light, and energy conversion, in the form of heat or radiation to harmless low energy consumption or energy release substances. Containing a hydroxy group ortho of benzophenone ultraviolet absorbing only below 380nm, almost no absorption of visible light.
The product is in the range of wavelength 270-380nm absorbs strongly for polyvinyl chloride, acrylic resins, epoxy resins, phenolic resins, nitrocellulose and polyurethanes. However, the product can absorb part of the visible light, the article slightly yellow. White rat oral LD50 of 3000mg / kg. To toxic substances, flammable; thermal decomposition stimulation smoke. Storage features: Treasury ventilation low-temperature drying.
This product is slightly hazardous for water Do not allow undiluted product or large quantities to reach ground water, water course or sewage system, without government permission, Do not allow material discharged into the surrounding environment. If used and stored according to specifications. No decomposition. Holding receptacle seal in cool, dry place to ensure that the workplace has a good ventilation or exhaust.
Safety phrases:irCauses burns.ritating substance. Irritating to eyes, respiratory system and skin. Avoid contact with skin and eyes.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.Highly flammable. Cause burns. Away from fire.I company for the production plant, complete production equipment and testing equipment.
|CAS register number||131-54-4|
|Appearance||Pale yellow crystalline powder||Conform|
|Loss On Drying||≤0.5%||≤0.5%|