2,2',3,4,4',5,5'-Heptachloro-1,1'-biphenyl
[CAS# 35065-29-3]

Identification

• Classification: Analytical chemistry >> Food safety >> Dioxins, polychlorinated biphenyls, furans
• Name: 2,2',3,4,4',5,5'-Heptachloro-1,1'-biphenyl
• Synonyms: 2,2',3,4,4',5,5'-Heptachlorobiphenyl; 2,3,4,5,2',4',5'-Heptachlorobiphenyl; CB 180; K 180; PCB 180
• Molecular Formula: C₁₂H₃Cl₇
• Molecular Weight: 395.32
• CAS Registry Number: 35065-29-3
• EC Number: 621-378-9

Properties

• Solubility: Insoluble (7.5E^-7 g/L) (25 ºC), Calc.^*
• Density: 1.64 g/cm³ (65 ºC)^**
• Melting point: 114 ºC^***

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

^** Zal'kind, Yu. S.; Zhurnal Obshchei Khimii 1938, V8, P1918-21(in French, 1921).

^*** Erb, Francoise; Bulletin de la Societe Chimique de France 1976, (5-6, Pt. 2), P964-8.

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