2,2',5,5'-Tetrachloro-1,1'-biphenyl
[CAS# 35693-99-3]

Identification

• Classification: Analytical chemistry >> Food safety >> Dioxins, polychlorinated biphenyls, furans
• Name: 2,2',5,5'-Tetrachloro-1,1'-biphenyl
• Synonyms: 2,2',5,5'-Tetrachlorobiphenyl; 2,5,2',5'-Tetrachlorobiphenyl; CB 52; K 52; PCB 52
• Molecular Formula: C₁₂H₆Cl₄
• Molecular Weight: 291.99
• CAS Registry Number: 35693-99-3
• EC Number: 621-615-6

Properties

• Solubility: Insoluble (4.4E^-5 g/L) (25 °C), Calc.^*
• Density: 1.441±0.06 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 87 °C^**

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

^** Chiou, Cary T.

Safety Data

• Hazard Symbols: F;Xn;N
• Risk Statements: R11;R33;R38;R50/53;R65;R67
• Safety Statements: S16;S61;S62

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 1262 3 / PGII