5958-25-8

Basic information

• Product Name: 3,4,5-trichloro-2,6-difluoropyridine
• Synonyms: 3,4,5-Trichloro-2,6-difluoropyridine; pyridine, 3,4,5-trichloro-2,6-difluoro-
• CAS NO: 5958-25-8
• Molecular Formula: C₅Cl₃F₂N
• Molecular Weight: 218.416
• Mol File: 5958-25-8.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 220.5°C at 760 mmHg
• Flash Point: 87.2°C
• Density: 1.72g/cm³
• Vapor Pressure: 0.167mmHg at 25°C
• Refractive Index: 1.526
• CAS DataBase Reference: 3,4,5-trichloro-2,6-difluoropyridine(CAS DataBase Reference)
• NIST Chemistry Reference: 3,4,5-trichloro-2,6-difluoropyridine(5958-25-8)
• EPA Substance Registry System: 3,4,5-trichloro-2,6-difluoropyridine(5958-25-8)

Safety Data

• Hazardous Substances Data: 5958-25-8(Hazardous Substances Data)

Upstream product

• 2176-62-7 2,3,4,5,6-pentachloropyridine 
• 7664-39-3 hydrogen fluoride 
• 7789-23-3 potassium fluoride 
• 700-16-3 Pentafluoropyridine 
• 1737-93-5 3,5-dichloro-2,4,6-trifluoropyridine 

Downstream Products

• 51066-42-3 4,6-(C₆H₅S)2-3,5-Cl₂-C₅FN 

Relevant articles and documents

Novel method for continuous production of fluroxypyr intermediate 3,5-dichloro-2,4,6-trifluoropyridine

The invention discloses a novel method for continuous production of fluroxypyr intermediate 3,5-dichloro-2,4,6-trifluoropyridine. The method comprises the steps as follows: N-stage reactors are used,compound pentachloropyridine and a catalyst are added to each stage of reactor, and hydrogen fluoride is introduced into the first-stage reactor after heating, melting and dehydration; unreacted hydrogen fluoride and produced hydrogen chloride tail gas in each stage of reactor are introduced into a condenser in each stage for condensing, the uncondensed tail gas is introduced into the next stage of reactor, the tail gas of the last stage of reactor is condensed by two condensers, hydrogen fluoride is separated, discharged, absorbed by a tail gas recovery device and used as by-product hydrochloric acid, and hydrogen fluoride condensed and recovered by the condenser in each stage is returned to each stage of reactor. With adoption of the synthesis method, hydrogen fluoride use rate is high,purity of by-product hydrochloric acid is high, and the content of hydrogen fluoride is lower than 1%; the method has the advantages of being high in product yield and reaction selectivity, solvent-free, low in production cost, simple in process, green and environmentally friendly, and is very suitable for industrial production.