C12H9Cl
188.65 g/mol
Industrial ChemicalWarning
4-CHLOROBIPHENYL
CAS2051-62-9EC218-127-7
Category
Industrial Chemical
Compound Class
Halocarbon
Primary Use
Polychlorinated biphenyl congener
4-Chlorobiphenyl is a monochlorinated biphenyl compound and one of the simplest polychlorinated biphenyl (PCB) congeners. It consists of a biphenyl core with a single chlorine atom at the para position, giving it a molecular weight of 188.
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.
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Related Compounds
SimilarStructure SimilarSimilarity 0.79
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Referencestereoisomer of
4-Chlorobiphenyl-2',3',4',5',6'-d5
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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
Regulatory Compliance1
- CN Catalogue of Hazardous ChemicalsCNRegulation
Customs Tariff Classification
The international HS code for 4-CHLOROBIPHENYL (CAS 2051-62-9) 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-chloro-4-phenylbenzene
InChIKey
FPWNLURCHDRMHC-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)C2=CC=C(C=C2)Cl
Synonyms (16)
- 1,1'-Biphenyl, 4-chloro-
- 1-Chloro-4-phenylbenzene
- 4-CHLOROBIPHENYL
- 4-Chlorbiphenyl
- 4-Chloro-1,1'-biphenyl
- 4-Chlorobiphenyl-d5
- 4-Chlorodiphenyl
- 4-Monochlorobiphenyl
- 4-chlorophenylbenzene
- Biphenyl, 4-chloro-
- CHLORO-1,1'-BIPHENYL, 4-
- PCB 3
- PCB No. 3
- p-Chlorobiphenyl
- p-Chlorodiphenyl
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