3,3',4,4'-Tetrachloro-1,1'-biphenyl
[CAS# 32598-13-3]

Identification

• Classification: Analytical chemistry >> Food safety >> Dioxins, polychlorinated biphenyls, furans
• Name: 3,3',4,4'-Tetrachloro-1,1'-biphenyl
• Synonyms: 3,3',4,4'-Tetrachlorobiphenyl; 3,4,3',4'-Tetrachlorobiphenyl; CB 77; PCB 77; TeCB 77
• Molecular Formula: C₁₂H₆Cl₄
• Molecular Weight: 291.99
• CAS Registry Number: 32598-13-3
• EC Number: 634-804-3

Properties

• Solubility: Insoluble (1.4E^-5 g/L) (25 °C), Calc.^*
• Density: 1.441±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 182-184 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2014 ACD/Labs)

^** "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

Safety Data

• Hazard Symbols: N
• Risk Statements: R33;R50/53
• Safety Statements: S60;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400

• Transport Information: UN 3432 9 / PGII