博文

5-Bromo-1-pentene CAS 1119-51-3 Organic Intermediate Manufacturer China

图片
5-Bromo-1-pentene (CAS 1119-51-3 ) is a bromine-containing organic compound. Its molecule contains both an active bromine atom and a carbon-carbon double bond, resulting in high reactivity. It is widely used in organic synthesis, pharmaceutical intermediates, agrochemical raw materials, and the preparation of specialty chemicals. This compound serves as an important starting material for the synthesis of nitrogen-containing heterocycles, alcohols, esters, and other fine chemicals. It also has applications in polymer material modification and surface functionalization. Pharmaceutical intermediates : used in the synthesis of antibacterial drugs, antiviral drugs, and other active molecules Agrochemicals: important intermediates for the synthesis of pesticides, herbicides, and other products Polymer materials: used for monomer modification of functional polymers Fine chemicals: used in the synthesis of surfactants, flavors, and fragrances, and specialty chemicals High purity (≥98%), stabl...
发表评论
阅读全文

Polyethyleneimine (PEI) CAS 9002-98-6 Branched & Linear PEI Manufacturer China

图片
Polyethyleneimine (PEI, CAS 9002-98-6 ) is a high-molecular-weight organic amine compound containing numerous primary, secondary, and tertiary amine groups within its molecular chain, exhibiting extremely high cationic density and reactivity. Based on its molecular structure, polyethyleneimine is classified into two types: linear ( L-PEI ) and branched (B-PEI), each suitable for different industrial and scientific applications. PEI is widely used in papermaking, textiles, wastewater treatment, metal chelation, coating dispersion, gene transfer vectors, and nanomaterial surface modification. It is a functional polymer material with extremely wide applications. Paper Industry: Used as a wet and dry strength agent to improve paper strength and durability Water Treatment: Cationic flocculant for removing suspended solids, heavy metals, and oil Textile Industry: Improves dye adsorption and color fastness Metal Chelation and Anticorrosion: Forms stable complexes with heavy metal ions Coati...
发表评论
阅读全文

The preparation method of octyl benzyl phthalate

 The preparation method of  octyl benzyl phthalate (1) Place the four-necked flask in an oil bath, install a stirrer, thermometer and reflux condenser. Add phthalic anhydride, n-octanol and sulfuric acid to the flask. Gradually heat it to 138-140℃ while stirring continuously, allowing the phthalic anhydride to melt completely into a transparent liquid. Then raise the temperature to 100-110℃ and let the reaction proceed for 2 hours. A monooctyl phthalate is produced.  (2) Cool the reaction product to 60-80℃, drop in sodium hydroxide solution while stirring continuously. Complete the addition within 30 minutes and then adjust the pH of the reaction mixture to 8.0-8.5 using sodium carbonate solution. (3) Heat the reaction product in step (2) to 80-90℃, add catalyst tri-n-butylamine and drop in benzyl chloride while controlling the dripping speed. Complete the addition in 20 minutes. Then raise the temperature to 100-105℃ and conduct a reflux reaction for 2-3 hours.  (4)...
发表评论
阅读全文

DeshangChemical Company And Factory

图片
  Our Advantages 1.Comprehensive One-Stop Service for Your Industry Needs Our state-of-the-art service station is designed to cater to your entire industry's requirements, offering seamless mixing, efficient repacking, and secure storing services. By choosing us, you gain the convenience of a single-source solution for all your needs. We ensure timely updates on order processing, acting as your trusted warehouse and purchasing office in China. 2.Tailored Solutions for Optimal Efficiency Navigating through numerous suppliers can be daunting. Leave that to us. With an extensive network of both Chinese and international suppliers for every item, we streamline the process for you. Simply share your requirements, and we will leverage our vast resources to match you with the most suitable products. Additionally, our warehouse boasts a wide range of imported goods, ensuring top-quality options are always within reach. 3.Uncompromising Quality Assurance At the heart of our operations lies ...
发表评论
阅读全文

Direct supply XY-T Triethyl Aluminum with high-purity

  Triethyl aluminum (TEAL)is  mainly  used  for organic  synthesis.It  is  an  important  olefin  polymerization  catalyst.  It  can  also  be  used  as  alkylating  agent.It  can  be  used  as  the  co-catalyst  of  Ziegler-Natta  catalyst  compo- nents.It can also  be  used as the fuel of rocket.It  is characterized  by strong  iritation and corrosion.Xiangyang built the triethy aluminum  production  line  in  2010.The  annual  output  of XY-T  triethyl  aluminum  produced  by  the  world-leading  one-step  process  can  be  up  to  7,000 ...
发表评论
阅读全文

Organic intermediates from "laboratory" to "production line": 3 major core transformation pain points and solutions

Organic intermediates from "laboratory" to "production line": 3 major core transformation pain points and solutions In the organic chemical industry chain, intermediates serve as the crucial link connecting basic chemical raw materials with end products (such as medicines, pesticides, new materials, etc.). Often, the intermediates that can be stably synthesized and meet the standard purity in the laboratory will frequently encounter problems such as purity fluctuations, soaring costs, and out-of-control safety risks when they enter production lines of tons or even hundreds of tons - this "successful small-scale trial, failed medium-scale trial, and halted large-scale trial" predicament is almost a challenge that all intermediate chemical enterprises will face. This article will focus on the three major core pain points during the transformation from laboratory to production line, analyze the reasons based on actual production scenarios, and provide feasib...
发表评论
阅读全文

Bisphenol A Epoxy Resin Cas 1675-54-3

图片
 2,2 - Bis-(4-glycidyloxybenzene) propane (CAS number: 1675-54-3 ), also known as Bisphenol A Diglycidyl Ether (Bisphenol A DGEBA or BADGE), is an important epoxy resin monomer and is widely used in coatings, adhesives, electronic packaging and other fields. The following is a comprehensive information summary based on publicly available online resources:  I. Basic Chemical Information Molecular Structure and Properties Molecular Formula: C₂₁H₂₄O₄ Molecular Weight: 340.41 Appearance: Colorless to pale yellow transparent liquid Density: 1.2 ± 0.1 g/cm³, Boiling Point: 487.0 ± 35.0°C, Melting Point: 40 - 44°C, Flash Point: 148.5 ± 32.8°C Solubility: Insoluble in water, soluble in organic solvents. Aliases and CAS Number Chinese Alias: Bisphenol A diglycidyl ether, DGEBA, DER 332, etc. English Alias: Bisphenol A diglycidyl ether (BADGE), DGEBA, DER 332, etc. CAS Number: 1675-54-3.  II. Product Information and Suppliers Main Suppliers Domestic Suppliers: Shandong Deshang (i...
发表评论
阅读全文