4′-Nonyl[1,1′-biphenyl]-4-carbonitrile, with the CAS number 52709-85-0, is an organic compound characterized by its biphenyl structure substituted with a nonyl group and a cyano group. This compound typically exhibits properties associated with both hydrophobic and lipophilic characteristics due to the long nonyl chain, which enhances its solubility in organic solvents. The presence of the cyano group introduces polar characteristics, which can influence its reactivity and interactions with other chemical species. It is often utilized in various applications, including as a liquid crystal material in display technologies, owing to its ability to exhibit liquid crystalline phases. The compound's thermal stability and phase transition behaviors are critical for its performance in such applications. Additionally, its molecular structure can affect its optical properties, making it suitable for specific electronic and photonic applications. Safety data should be consulted for handling and exposure guidelines, as with any chemical substance.

4′-Nonyl[1,1′-biphenyl]-4-carbonitrile

52709-85-0: (1,1'-Biphenyl)-4-carbonitrile, 4'-nonyl-, 4'-Nonylbiphenyl-4-Carbonitrile, 4-Cyano-4'-nonylbiphenyl, 4-Nonyl-4′-cyanobiphenyl, 4-n-Nonyl-4′-cyanobiphenyl, 4′-Nonyl-4-biphenylcarbonitrile, CB 9 (liquid crystal), p-Cyano-p′-nonylbiphenyl, p-Nonyl-p′-cyanobiphenyl, CB 9,  4'-Nonyl(1,1'-biphenyl)-4-carbonitrile, 4′-Nonyl[1,1′-biphenyl]-4-carbonitrile

4-Cyano-4'-nonylbiphenyl is a functional theory that postulates the existence of a homologous series of cyanobiphenyls. These compounds are synthesized from biphenyl by the substitution of one or two hydrogen atoms with a cyano group. The nmr spectra show that these molecules have vibrational frequencies and viscosities similar to those of biphenyl, but with decreased melting points. 4-Cyano-4'-nonylbiphenyl was first synthesized in 1871 and has been studied more extensively since the 1990s due to its use as a potential antiviral agent against Covid-19 pandemic. The compound is being investigated as an alternative to cidofovir, which has shown some resistance in vitro.

CAS 52709-85-0: 4′-Nonyl[1,1′-biphenyl]-4-carbonitrile

4-Cyano-4'-nonylbiphenyl

Ref: 3D-CCA70985

4-CYANO-4'-NONYLBIPHENYL

Ref: IN-DA00DDTI

4'-(Non-1-yl)-[1,1'-biphenyl]-4-carbonitrile

Ref: 54-OR12670

4-Cyano-4'-nonylbiphenyl

Ref: 3B-C3268