2,2',5-Trichloro-1,1'-biphenyl
[CAS# 37680-65-2]

Identification

• Classification: Analytical chemistry >> Food safety >> Dioxins, polychlorinated biphenyls, furans
• Name: 2,2',5-Trichloro-1,1'-biphenyl
• Synonyms: 2,2',5-Trichlorobiphenyl; 2,2',5'-Trichlorobiphenyl; 2,5,2'-Trichlorobiphenyl; CB 18; CB 18 (chlorocarbon); PCB 18
• Molecular Formula: C₁₂H₇Cl₃
• Molecular Weight: 257.54
• CAS Registry Number: 37680-65-2
• EC Number: 621-394-6

Properties

• Solubility: Insoluble (1.9E^-4 g/L) (25 ºC), Calc.^*
• Density: 1.351±0.06 g/cm³ (20 ºC 760 Torr), Calc.^*
• Melting point: 44 ºC^**

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

^** Chiou, Cary T.; Environmental Science and Technology 2005, V39(22), P8840-8846.

Safety Data

• Hazard Symbols: Xn;N
• Risk Codes: R33;R50/53
• Safety Description: S35;S60;S61

Hazard Classification

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

• Transport Information: UN 3432 9 / PGII