China Largest Manufacturer factory sales Sodium benzenesulfinate CAS 873-55-2 CAS NO.873-55-2

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BENZENESULFINIC ACID SODIUM SALT Basic information Product Name: BENZENESULFINIC ACID SODIUM SALT Synonyms: 4-CHLOROBENZENESULPHINIC ACID SODIUM SALT;4-CHLOROBENZENESULFINIC ACID SODIUM SALT HYDRATE;SODIUM 4-CHLOROBENZENE SULFINIC ACID;P-CHLOROBENZENESULFINIC ACID SODIUM SALT;Sodium benzene sulfonate,Sodium benzosulfonate ;BENZENESULFINIC ACID NA SALT;Natriumbenzolsulfinat;Benzenesulfinic acid sodium salt CAS: 873-55-2 MF: C6H5NaO2S MW: 164.16 EINECS: 212-842-8 Product Categories: Pharmaceutical Intermediates;Industrial/Fine Chemicals Mol File: 873-55-2.mol   BENZENESULFINIC ACID SODIUM SALT Chemical Properties Melting point  >300 °C(lit.) Boiling point  83-84 °C storage temp.  Inert atmosphere,Room Temperature solubility  Water form  Crystals or Crystalline Powder color  White Water Solubility  Soluble in water. Sensitive  Hygroscopic BRN  3598405 CAS DataBase Reference 873-55-2(CAS DataBase Reference) EPA Substance Registry System Benzenesulfinic acid, sodium salt (873-55-2)   Safety Information Hazard Codes  Xi,Xn Risk Statements  36/37/38-20/21/22 Safety Statements  26-37/39-36-24/25 WGK Germany  1 RTECS  DA9135000 TSCA  T HS Code  29309090 MSDS Information Provider Language Benzenesulfinic acid sodium salt English ACROS English ALFA English   BENZENESULFINIC ACID SODIUM SALT Usage And Synthesis Chemical Properties white crystalline powder or crystals Uses Benzenesulfinic Acid Sodium Salt is used reduce the adverse chemical interaction involved in the coupling of self/dual-cured composites to hydrated dentin. Uses It is used as a polymer adhesive enhancers, plasticizers for plasticized and modified of polyamide, epoxy resin, phenolic resin. It is designed for manufacturing of photography, pharmaceutical, electroplating industry, can be used as photo-reducing agent. Uses Benzenesulfinic acid sodium salt has been used in synthesis of sulfones by reaction of organic halides and sodium benzenesulfinate using higher alcohols or diols as solvents.It was also used in the synthesis of aryl sulfones via copper-catalyzed cross-coupling with boronic acids and vinyl sulfones via reaction with vicinal dibromides. General Description Benzenesulfinic acid sodium salt when treated with alkynylselenonium salts yields (Z)-β-alkoxyvinylsulfones. It undergoes rhodium-catalyzed desulfinative coupling with aldehydes to yield ketones. Purification Methods Dissolve it in the minimum volume of O2 free H2O (prepared by bubbling N2 through for 2 hours) and adding O2 free EtOH (prepared as for H2O), set aside at 4o overnight under N2, filter, wash with EtOH, then Et2O and dry in vacuo. The Na salt is relatively stable to air oxidation, but is best kept under N2 in the dark. Also recrystallise it from EtOH and dry it at 120o for 4hours in a vacuum. [Kornblum & Wade J Org Chem 52 5301 1987, Beilstein 11 II 2, 11 IV 3.]   BENZENESULFINIC ACID SODIUM SALT Preparation Products And Raw materials Raw materials Benzene-->Sodium sulfite-->Chlorosulfonic acid-->Sodium metabisulfite-->Benzenesulfonyl chloride-->Benzenesulfonic acid sodium salt-->GCLE-->Iodobenzene-->PHENYLMAGNESIUM CHLORIDE-->Bromobenzene Preparation Products methyl(±)cis，trans-2，2-dimethyl-3-(2-methyl-1-propenyl cyclopropane carboxylate)-->Phenyl vinyl sulfone-->METHYL PENT-4-YN-2-YLCARBAMATE-->BENZENETHIONOSULFONIC ACID, SODIUM SALT-->Fast Scarlet Base LG-->N-n-Butyl benzene sulfonamide-->Benzenesulfenic acid,2,4-dinitro-, ethyl ester-->3,4-diphenyl-4H-1,2,4-triazole-->BIS(2,4-DINITROPHENYL) DISULFIDE-->BENZENESULFINIC ACID-->1-Bromo-4-(phenylsulfonyl)benzene

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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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BENZENESULFINIC ACID SODIUM SALT Basic information Product Name: BENZENESULFINIC ACID SODIUM SALT Synonyms: 4-CHLOROBENZENESULPHINIC ACID SODIUM SALT;4-CHLOROBENZENESULFINIC ACID SODIUM SALT HYDRATE;SODIUM 4-CHLOROBENZENE SULFINIC ACID;P-CHLOROBENZENESULFINIC ACID SODIUM SALT;Sodium benzene sulfonate,Sodium benzosulfonate ;BENZENESULFINIC ACID NA SALT;Natriumbenzolsulfinat;Benzenesulfinic acid sodium salt CAS: 873-55-2 MF: C6H5NaO2S MW: 164.16 EINECS: 212-842-8 Product Categories: Pharmaceutical Intermediates;Industrial/Fine Chemicals Mol File: 873-55-2.mol   BENZENESULFINIC ACID SODIUM SALT Chemical Properties Melting point  >300 °C(lit.) Boiling point  83-84 °C storage temp.  Inert atmosphere,Room Temperature solubility  Water form  Crystals or Crystalline Powder color  White Water Solubility  Soluble in water. Sensitive  Hygroscopic BRN  3598405 CAS DataBase Reference 873-55-2(CAS DataBase Reference) EPA Substance Registry System Benzenesulfinic acid, sodium salt (873-55-2)   Safety Information Hazard Codes  Xi,Xn Risk Statements  36/37/38-20/21/22 Safety Statements  26-37/39-36-24/25 WGK Germany  1 RTECS  DA9135000 TSCA  T HS Code  29309090 MSDS Information Provider Language Benzenesulfinic acid sodium salt English ACROS English ALFA English   BENZENESULFINIC ACID SODIUM SALT Usage And Synthesis Chemical Properties white crystalline powder or crystals Uses Benzenesulfinic Acid Sodium Salt is used reduce the adverse chemical interaction involved in the coupling of self/dual-cured composites to hydrated dentin. Uses It is used as a polymer adhesive enhancers, plasticizers for plasticized and modified of polyamide, epoxy resin, phenolic resin. It is designed for manufacturing of photography, pharmaceutical, electroplating industry, can be used as photo-reducing agent. Uses Benzenesulfinic acid sodium salt has been used in synthesis of sulfones by reaction of organic halides and sodium benzenesulfinate using higher alcohols or diols as solvents.It was also used in the synthesis of aryl sulfones via copper-catalyzed cross-coupling with boronic acids and vinyl sulfones via reaction with vicinal dibromides. General Description Benzenesulfinic acid sodium salt when treated with alkynylselenonium salts yields (Z)-β-alkoxyvinylsulfones. It undergoes rhodium-catalyzed desulfinative coupling with aldehydes to yield ketones. Purification Methods Dissolve it in the minimum volume of O2 free H2O (prepared by bubbling N2 through for 2 hours) and adding O2 free EtOH (prepared as for H2O), set aside at 4o overnight under N2, filter, wash with EtOH, then Et2O and dry in vacuo. The Na salt is relatively stable to air oxidation, but is best kept under N2 in the dark. Also recrystallise it from EtOH and dry it at 120o for 4hours in a vacuum. [Kornblum & Wade J Org Chem 52 5301 1987, Beilstein 11 II 2, 11 IV 3.]   BENZENESULFINIC ACID SODIUM SALT Preparation Products And Raw materials Raw materials Benzene-->Sodium sulfite-->Chlorosulfonic acid-->Sodium metabisulfite-->Benzenesulfonyl chloride-->Benzenesulfonic acid sodium salt-->GCLE-->Iodobenzene-->PHENYLMAGNESIUM CHLORIDE-->Bromobenzene Preparation Products methyl(±)cis，trans-2，2-dimethyl-3-(2-methyl-1-propenyl cyclopropane carboxylate)-->Phenyl vinyl sulfone-->METHYL PENT-4-YN-2-YLCARBAMATE-->BENZENETHIONOSULFONIC ACID, SODIUM SALT-->Fast Scarlet Base LG-->N-n-Butyl benzene sulfonamide-->Benzenesulfenic acid,2,4-dinitro-, ethyl ester-->3,4-diphenyl-4H-1,2,4-triazole-->BIS(2,4-DINITROPHENYL) DISULFIDE-->BENZENESULFINIC ACID-->1-Bromo-4-(phenylsulfonyl)benzene