C18H19N
249.3 g/mol
Electronic ChemicalWarning
4-Cyano-4'-pentylbiphenyl
CAS40817-08-1EC255-093-2
Category
Electronic Chemical
Compound Class
Aromatic
Primary Use
liquid crystal material
4-Cyano-4'-pentylbiphenyl is a compound consisting of a biphenyl core with a cyano group and a pentyl chain. It is primarily used as a liquid crystal material in electronic displays and optical devices.
liquid crystal material for electronic displayscomponent in optical devices
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 Reading
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Read moreSafety Reference
Warning
H302Harmful if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H332Harmful if inhaled
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 4-Cyano-4'-pentylbiphenyl (CAS 40817-08-1) is 2926.90.
HS code (international, 6-digit)
2926.90
EU CN code (8-digit)
2926 90 70
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
4-(4-pentylphenyl)benzonitrile
InChIKey
HHPCNRKYVYWYAU-UHFFFAOYSA-N
SMILES
CCCCCC1=CC=C(C=C1)C2=CC=C(C=C2)C#N
Synonyms (24)
- 5CB
- 4,4'-n-Pentylcyanobiphenyl
- 4-CYANO-4'-PENTYLDIPHENYL-D19
- 4-Cyano-4'-n-pentylbiphenyl
- 4-Cyano-4'-pentylbiphenyl
- 4-Pentyl-4'-cyanobiphenyl
- 4-n-pentyl-4'-cyanobiphenyl
- p-Cyano-p'-pentylbiphenyl
- pentyl cyanobiphenyl
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