3,4,4',5-Tetrachlorobiphenyl (PCB-81) is a member of the polychlorinated biphenyl (PCB) family, characterized by its four chlorine atoms attached to a biphenyl structure. This compound is known for its environmental persistence and potential toxicity, as PCBs can accumulate in the food chain and pose risks to human health and ecosystems. PCB-81 specifically has a unique arrangement of chlorine substituents that influences its chemical properties, such as solubility and reactivity. The notation "13C12, 99%" indicates that this substance is isotopically labeled with carbon-13, which is often used in research to trace the compound's behavior in various environments. The concentration of 40 ± 2 µg/ml in nonane suggests that PCB-81 is dissolved in a non-polar solvent, which is typical for hydrophobic compounds like PCBs. Overall, PCB-81 is significant in studies related to environmental chemistry, toxicology, and regulatory assessments due to its implications for health and environmental safety.

3,4,4',5-TETRACB (PCB-81) (13C12, 99%) 40+/-2 ug/ml in Nonane

208461-24-9: 3,4,4',5-Tetrachlorobiphenyl (PCB-81) is a member of the polychlorinated biphenyl (PCB) family, characterized by its four chlorine atoms attached to a biphenyl structure. This compound is known for its environmental persistence and potential toxicity, as PCBs can accumulate in the food chain and pose risks to human health and ecosystems. PCB-81 specifically has a unique arrangement of chlorine substituents that influences its chemical properties, such as solubility and reactivity. The notation "13C12, 99%" indicates that this substance is isotopically labeled with carbon-13, which is often used in research to trace the compound's behavior in various environments. The concentration of 40 ± 2 µg/ml in nonane suggests that PCB-81 is dissolved in a non-polar solvent, which is typical for hydrophobic compounds like PCBs. Overall, PCB-81 is significant in studies related to environmental chemistry, toxicology, and regulatory assessments due to its implications for health and environmental safety.

CAS 208461-24-9

3,4,4',5-TETRACB (PCB-81) (13C12, 99%) 40+/-2 ug/ml in Nonane

PCB No. 81 13C12 40 µg/mL in Isooctane

Ref: 04-A20008113IO-40

PCB No. 81 13C12 40 µg/mL in Isooctane

Ref: 04-V20008113IO-40