2,2',3,5,5',6-Hexachloro-1,1'-biphenyl
[CAS# 52663-63-5]

Identification

• Classification: Analytical chemistry >> Food safety >> Dioxins, polychlorinated biphenyls, furans
• Name: 2,2',3,5,5',6-Hexachloro-1,1'-biphenyl
• Synonyms: 2,2',3,5,5',6-Hexachlorobiphenyl; 2,2',3',5,5',6'-Hexachlorobiphenyl; 2,3,5,6,2',5'-Hexachlorobiphenyl; CB 151; PCB 151
• Molecular Formula: C₁₂H₄Cl₆
• Molecular Weight: 360.88
• CAS Registry Number: 52663-63-5
• EC Number: 630-503-6

Safety Data

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

Hazard Classification

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

• Transport Information: UN 3432 9 / PGII