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CAS 35693-99-3

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2,2',5,5'-tetrachlorobiphenyl

Description:
2,2',5,5'-Tetrachlorobiphenyl, with the CAS number 35693-99-3, is a member of the polychlorinated biphenyl (PCB) family, which are synthetic organic chemicals known for their environmental persistence and potential toxicity. This compound consists of two phenyl rings connected by a single bond, with four chlorine atoms substituted at the 2, 2', 5, and 5' positions. Its molecular structure contributes to its hydrophobic nature, making it poorly soluble in water but soluble in organic solvents. 2,2',5,5'-Tetrachlorobiphenyl is characterized by its stability and resistance to degradation, which raises concerns regarding bioaccumulation in the environment and potential adverse effects on human health and ecosystems. It has been associated with various health risks, including endocrine disruption and carcinogenicity. Due to these properties, the production and use of PCBs, including this specific compound, have been heavily regulated or banned in many countries. Environmental monitoring and remediation efforts are essential to manage the legacy of PCBs in contaminated sites.
Formula:C12H6Cl4
InChI:InChI=1S/C12H6Cl4/c13-7-1-3-11(15)9(5-7)10-6-8(14)2-4-12(10)16/h1-6H
InChI key:InChIKey=HCWZEPKLWVAEOV-UHFFFAOYSA-N
SMILES:ClC1=C(C=C(Cl)C=C1)C2=C(Cl)C=CC(Cl)=C2
Synonyms:
  • 1,1'-Biphenyl, 2,2',5,5'-Tetrachloro-
  • 1,1′-Biphenyl, 2,2′,5,5′-tetrachloro-
  • 2,2',5,5'-Pcb
  • 2,2',5,5'-Tcb
  • 2,2',5,5'-Tetrachlorbiphenyl
  • 2,2',5,5'-Tetrachloro-1,1'-biphenyl
  • 2,2′,5,5′-Tcb
  • 2,2′,5,5′-Tetrachloro-1,1′-biphenyl
  • 2,2′,5,5′-Tetrachlorobiphenyl
  • 2,5,2',5'-Tetrachlorobiphenyl
  • See more synonyms
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