China Largest Manufacturer factory sales UV-328 CAS 25973-55-1 for 500MT/Year

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2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol Basic information Consumer Uses Properties Product Name: 2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol Synonyms: 2-(3,5-Di-tert-amyl-2-hydroxyphenyl)benzotriazole;HRsorb-328;2-(3',5'-di-t-aMyl-2'-hydroxyphenyl) benzotriazole;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-Phenol;2-(2H-Benzotriazol-2-yl)-4,6-di-t;UV-328;2-(2H-Benzotriazol-2-yl)-4,6-di-tert-amylphenol;UV ABSORBER UV-328 CAS: 25973-55-1 MF: C22H29N3O MW: 351.49 EINECS: 247-384-8 Product Categories: Industrial/Fine Chemicals;Polymer Additives;Polymer Science;Stabilizers Mol File: 25973-55-1.mol   2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol Chemical Properties Melting point  80-83°C Boiling point  469.1±55.0 °C(Predicted) density  1.08±0.1 g/cm3(Predicted) storage temp.  -20°C Freezer solubility  DMSO (Slightly), Ethyl Acetate (Slightly), Methanol (Slightly, Sonicated) pka 8.85±0.50(Predicted) form  Solid color  Off-White to Pale Yellow CAS DataBase Reference 25973-55-1(CAS DataBase Reference) EPA Substance Registry System 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (25973-55-1)   Safety Information Hazard Codes  Xi,Xn Risk Statements  36/37/38-53-48/22 Safety Statements  26-36-61-22-53 WGK Germany  2 Hazardous Substances Data 25973-55-1(Hazardous Substances Data) MSDS Information   2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol Usage And Synthesis Consumer Uses This substance is used in the following products: coating products, air care products, adhesives and sealants, lubricants and greases, polishes and waxes and washing & cleaning products. Other release to the environment of this substance is likely to occur from: indoor use (e.g. machine wash liquids/detergents, automotive care products, paints and coating or adhesives, fragrances and air fresheners), outdoor use, indoor use in close systems with minimal release (e.g. cooling liquids in refrigerators, oil-based electric heaters) and outdoor use in close systems with minimal release (e.g. hydraulic liquids in automotive suspension, lubricants in motor oil and break fluids). Properties UV-328 has a melting point of 80-86 °C, a vapor pressure of 4,6·10−5 Pa (20 °C) and a water solubility of < 0,001 g·l−1 (20 °C). Description UV-328 (2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol) is a chemical compound that belongs to the phenolic benzotriazoles. It is a UV filter that is used as an antioxidant for plastics. Uses 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol is an ultraviolet light absorber (UVA) of the hydroxyphenylbenzotriazole class, which imparts outstanding light stability to plastics and other organic substrates. Uses UV-328 is a class of benzotriazole derivatives that can potentially be used as corrosion inhibitors in heat resistant fluids in aircraft, brake fluids in automobiles and for other industrial cooling systems. Application UV-328 is a light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homopolymers and copolymers, acrylic polymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers and adhesives.It protects polymers and organic pigments from UV radiation and helps maintain the original appearance and physical integrity of moldings, films, sheets and fibers during outdoor weathering. The application concentration is 0.1-1 %.UV-328 is recommended for applications such as automotive coatings, industrial coatings, commercial inks such as wood stains or do-it-yourself inks. General Description 2-(2H-Benzotriazol-2-yl)-4,6-di-tert-pentylphenol (UV-328) is an ultraviolet (UV) stabilizer with a phenolic group connected to the benzotriazole structure. These phenolic groups facilitate the absorption of UV light. UV-328 is mainly used in as a light stabilizer for coating and as an additive for industrial polymers.   2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol Preparation Products And Raw materials Raw materials 2,3-Dichloro-1,4-naphthoquinone-->2-(2H-Benzotriazol-2-yl)-4,6-bis(tert-pentyl)phenol N-oxide-->2-Nitrochlorobenzene   Phenoxycycloposphazene Preparation Products And Raw materials

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Leader Biochemical Group is a large leader incorporated industry manufacturers and suppliers of advanced refined raw materials From the year of 1996 when our factory was put into production to year of 2020, our group has successively invested in more than 52 factories with shares and subordinates.We focus on manufacture Pharm & chemicals, functional active ingredients, nutritional Ingredients, health care products, cosmetics, pharmaceutical and refined feed, oil, natural plant ingredients industries to provide top quality of GMP standards products.All the invested factories' product lines cover API and intermediates, vitamins, amino acids, plant extracts, daily chemical products, cosmetics raw materials, nutrition and health care products, food additives, feed additives, essential oil products, fine chemical products and agricultural chemical raw materials And flavors and fragrances. Especially in the field of vitamins, amino acids, pharmaceutical raw materials and cosmetic raw materials, we have more than 20 years of production and sales experience. All products meet the requirements of high international export standards and have been recognized by customers all over the world. Our manufacture basement & R&D center located in National Aerospace Economic & Technical Development Zone Xi`an Shaanxi China. Now not only relying on self-cultivation and development as well as maintains good cooperative relations with many famous research institutes and universities in China. Now, we have closely cooperation with Shanghai Institute of Organic Chemistry of Chinese Academy of Science, Beijing Institute of Material Medical of Chinese Academy of Medical Science, China Pharmaceutical University, Zhejiang University. Closely cooperation with them not only integrating Science and technology resources, but also increasing the R&D speed and improving our R&D power. Offering Powerful Tech supporting Platform for group development. Keep serve the manufacture and the market as the R&D central task, focus on the technical research.  Now there are 3 technology R & D platforms including biological extract, microorganism fermentation and chemical synthesis, and can independently research and develop kinds of difficult APIs and pharmaceutical intermediates. With the strong support of China State Institute of Pharmaceutical Industry (hereinafter short for CSIPI), earlier known as Shanghai Institute of Pharmaceutical Industry (SIPI), we have unique advantages in the R & D and industrialization of high-grade, precision and advanced products.  Now our Group technical force is abundant, existing staff more that 1000 people, senior professional and technical staff accounted for more than 50% of the total number of employees, including 15 PhD research and development personnel, 5 master′ S degree in technical and management personnel 9 people. We have advanced equipment like fermentation equipment and technology also extraction, isolation, purification, synthesis with rich production experience and strict quality control system, According to the GMP required, quickly transforming the R&D results to industrial production in time, it is our advantages and our products are exported to North and South America, Europe, Middle East, Africa, and other five continents and scale the forefront in the nation, won good international reputation.  We believe only good quality can bring good cooperation, quality is our key spirit during our production, we are warmly welcome clients and partner from all over the world contact us for everlasting cooperation, Leader will be your strong, sincere and reliable partner in China.

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