33284-50-3

Basic information

• Product Name: 2,4-DICHLOROBIPHENYL
• Synonyms: PCB NO 7;BALLSCHMITER NO 7;BZ NO 7;2,4-PCB;2,4-DICHLOROBIPHENYL;2,4-Dichloro-1-phenylbenzene;PCB 7;24DICHLOROBIPHENYL(2,4-DICHLOROISOMER)
• CAS NO: 33284-50-3
• Molecular Formula: C₁₂H₈Cl₂
• Molecular Weight: 223.1
• EINECS: 215-648-1
• Mol File: 33284-50-3.mol
• Article Data: 8

Chemical Properties

• Melting Point: 24.3°C
• Boiling Point: 289.78°C (rough estimate)
• Flash Point: 132.8 °C
• Appearance: /
• Density: 1.2490 (rough estimate)
• Vapor Pressure: 0.00179mmHg at 25°C
• Refractive Index: 1.6169 (589.3 nm 25℃)
• Water Solubility: 1.13mg/L(25 oC)
• BRN: 2046424
• CAS DataBase Reference: 2,4-DICHLOROBIPHENYL(CAS DataBase Reference)
• NIST Chemistry Reference: 2,4-DICHLOROBIPHENYL(33284-50-3)
• EPA Substance Registry System: 2,4-DICHLOROBIPHENYL(33284-50-3)

Safety Data

• Hazard Codes: N
• Statements: 33-50/53
• Safety Statements: 35-60-61
• RIDADR: 2315
• WGK Germany: 3
• RTECS: DV3905000
• HazardClass: 9
• PackingGroup: II
• Hazardous Substances Data: 33284-50-3(Hazardous Substances Data)

Usage

Uses

2,4-Dichlorobiphenyl is a polychlorinated biphenyl (PCB) congeners.

InChI:InChI=1/C12H8Cl2/c13-10-6-7-11(12(14)8-10)9-4-2-1-3-5-9/h1-8H

Upstream product

• 1193-72-2 1-bromo-2,4-dichlorobenzene 
• 71-43-2 benzene 
• 7012-37-5 2,4,4'-Trichlorobiphenyl 
• 1679-18-1 4-Chlorophenylboronic acid 
• 15862-07-4 2,4,5-trichlorobiphenyl 
• 35065-27-1 2,2',4,4',5,5'-Hexachlorobiphenyl 
• 55702-46-0 2,3,4-trichlorobiphenyl 
• 201230-82-2 carbon monoxide 
• 68716-47-2 2,4-dichlorophenylboronic acid 
• 790-50-1 2,4,2',4'-tetrachlorodiazoaminobenzene 

Downstream Products

• 2051-60-7 2-chloro-1,1'-biphenyl 
• 2051-62-9 4'-biphenyl chloride 
• 92-52-4 biphenyl 
• 827-52-1 1-phenyl-1-cyclohexane 
• 104941-36-8 4-(2',4'-Dichloro-biphenyl-4-yl)-2-methyl-4-oxo-butyric acid 

Relevant articles and documents

Regularities of Pd/C-catalyzed reduction of trichlorobiphenyls with 2-propanol in basic medium

Reduction of a series of trichlorobiphenyls with 2-propanol in basic medium catalyzed by Pd/C has been studied. Regioselectivity of the reduction has been determined. In the studied cases, the chlorine atom in para or meta positions of the more substituted ring has been more reactive. Using isotope labeling, it has been demonstrated that the reaction occurs via the stage of 2-propanol dehydration on palladium catalyst, followed by catalytic hydrogenation of the polychlorinated biphenyls.

Dechlorination of hexachlorobiphenyl by using potassium-sodium alloy

2,2',4,4',5,5'-Hexachlorobiphenyl (HCB) was dechlorinated with potassium-sodium (K-Na) alloy under an inert gas atmosphere. Solvent effect was observed in the reaction. Dechlorination yields in benzene and cyclohexane were 99.9998% and 99.99996%, respecti

Palladium-catalyzed carbonylative cross-coupling of organoboranes with hypervalent iodonium salts: Synthesis of aromatic ketones

The cross-coupling reaction of organoboronic acids and carbon monoxide (1 atm) with aryl-, alkenyl-, and alkynyliodonium salts at room temperature afforded unsymmetric aromatic ketones in moderate yields.