14121-36-9

Basic information

• Product Name: 2,4,5,6-TETRACHLOROPYRIMIDINE
• Synonyms: 2,3,4,6-Tetrachloropyridine
• CAS NO: 14121-36-9
• Molecular Formula: C₅HCl₄N
• Molecular Weight: 217.87
• EINECS: 217-228-3
• Product Categories: APIs & Intermediate;Pyrimidine;Halides;Pyridines
• Mol File: 14121-36-9.mol
• Article Data: 2

Chemical Properties

• Melting Point: 68-70 °C(lit.)
• Boiling Point: 108-112 °C (12 mmHg)
• Flash Point: 135.9°C
• Appearance: /
• Density: 1.662 g/cm³
• Vapor Pressure: 0.0208mmHg at 25°C
• Refractive Index: 1.588
• Storage Temp.: under inert gas (nitrogen or Argon) at 2-8°C
• CAS DataBase Reference: 2,4,5,6-TETRACHLOROPYRIMIDINE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4,5,6-TETRACHLOROPYRIMIDINE(14121-36-9)
• EPA Substance Registry System: 2,4,5,6-TETRACHLOROPYRIMIDINE(14121-36-9)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-27-37/39
• RIDADR: UN 2811 6.1/PG 3
• WGK Germany: 3
• RTECS: UV9745000
• Hazardous Substances Data: 14121-36-9(Hazardous Substances Data)

Usage

Purification Methods

Crystallise it from 50% EtOH and/or distil it. The N-oxide has m 210o (from EtOH/CHCl3). [Chivers & Suschitzky J Chem Soc 2870 1971, Beilstein 20 III/IV 6488, 20/5 V 421.]

InChI:InChI=1/C5HCl4N/c6-2-1-3(7)10-5(9)4(2)8/h1H

Upstream product

• 91872-08-1 2,4,6-trichloro-[3]pyridylamine 
• 874491-78-8 2,3,6-trichloro-[4]pyridylamine 
• 2176-62-7 2,3,4,5,6-pentachloropyridine 
• 60-29-7 diethyl ether 
• 68-12-2 N,N-dimethyl-formamide 
• 23995-94-0 4-Bromo-2,3,5,6-tetrachloropyridine 
• 72012-23-8 tetrachlo-5-iodoropyridine 
• 39873-38-6 bis(2,3,5,6-tetrachloropyridin-4-yl)sulfane 
• 74894-12-5 tetrachloro-4-(2-pyridylthio)pyridine 
• 30332-35-5 tetrachloro-4-iodopyridine 
• 27425-94-1 tetrachloro-4-pyridylcopper 
• 31279-12-6 tetrachloro-4-pyridylmagnesium chloride 
• 16063-69-7 2,4,6-trichloropyridine 
• 2587-02-2 2,6-dichloro-[4]pyridylamine 

Downstream Products

• 2402-77-9 2,3-dichloro-pyridine 

Relevant articles and documents

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Polyhalogenoaromatic Compounds. Part 41. Photochemical Dehalogenation and Arylation Reactions of Polyhalogenoaromatic and Polyhalogenoheteroaromatic Compounds

Photolysis of pentachloro- and pentabromo-pyridine in diethyl ether or methanol leads to loss of β-halogen.A product (9) derived from attack on diethyl ether was also identified. 4-Bromotetrachloropyridine also undergoes loss of bromine and tetrachloro-4-iodopyridine loses iodine exclusively.Photodehalogenation of some perhalogenothiophens, tetrachloropyrimidine, and hexachlorobenzene is also described.Photolysis of pentachloroiodobenzene, tetrachloroiodopyridines, and trichloro-5-iodothiophen in benzene gives the corresponding polychloroaryl- or polychloroheteroaryl-benzenes.Photolysis of tetrachloro-4-(phenylthio)pyridine (3) gives 1,3,4-trichlorobenzothienopyridine (6), and the analogous perchloro(phenylthio)pyridine (37) gives the corresponding perchlorobenzothienopyridine (61).The scope of this type of photocyclisation has been explored; starting materials investigated include various arylthiopolyhalogenopyridines, some arylamino- and aryloxy-tetrachloropyridines, and 4-anilinotrichloropyrimidine.