C12H6Cl4
292 g/mol
Industrial ChemicalWarning
2,2',5,5'-TETRACHLOROBIPHENYL
CAS35693-99-3EC621-615-6
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Dielectric and coolant fluid
2,2',5,5'-Tetrachlorobiphenyl is a polychlorinated biphenyl (PCB) compound historically used as a dielectric and coolant fluid in electrical equipment. Due to its high toxicity and carcinogenicity, production of PCBs was banned internationally under the Stockholm Convention on Persistent Organic Pollutants in 2001.
Dielectric and coolant fluid for electrical equipmentHeat transfer fluid
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
Sourcing 2,2',5,5'-TETRACHLOROBIPHENYL?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
Related Compounds
ReferenceSame Category
3,5-dimethylpiperidine
CAS35794-11-7
chemical intermediate
ReferenceSame Category
Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione
CAS35878-28-5
Chemical intermediate for pharmaceuticals
ReferenceSame Category
6-oxide6H-dibenz(c,E)(1,2)oxaphosphorin
CAS35948-25-5
flame retardant
ReferenceSame Category
Sodium phenoxyacetate
CAS3598-16-1
chemical intermediate
Referencestereoisomer of
2,2',5,5'-tetrachlorobiphenyl-3,4,6-d3
CAS1219794-74-7
research compound
Safety Reference
Warning
H373May cause damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for 2,2',5,5'-TETRACHLOROBIPHENYL (CAS 35693-99-3) is 2903.99.
HS code (international, 6-digit)
2903.99
EU CN code (8-digit)
2903 99 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
1,4-dichloro-2-(2,5-dichlorophenyl)benzene
InChIKey
HCWZEPKLWVAEOV-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1Cl)C2=C(C=CC(=C2)Cl)Cl)Cl
Synonyms (22)
- TCBP
- 2,2',5,5'-TCB
- 2,2',5,5'-TETRACHLOROBIPHENYL
- 2,2',5,5'-Tetracb
- 2,3',5,6'-Tetrachlorobiphenyl
- 2,5,2',5'-Tetrachlorobiphenyl
- PCB 52
- PCB No 52
Sourcing 2,2',5,5'-TETRACHLOROBIPHENYL?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.