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Product Code M2358A1
Price $175.00 ex. VAT

4-(trans-4-Pentylcyclohexyl)benzonitrile (PCH5), liquid crystal (nematic).

Nematic liquid crystal for the application of optical electronics i.e. in liquid-crystal display (LCD)

4-(trans-4-Pentylcyclohexyl)benzonitrile (PCH5) has a structure of pentyl alkyl chain and benzonitrile groups attached to 1,4-positions of cyclohexane ring in trans-geometry, in another word, they are facing opposite directions.

4-(trans-4-Pentylcyclohexyl)benzonitrile is a rod-like liquid crystal with a nematic to isotropic phase transition at 327.6 K and a crystalline to nematic phase transition at 303 K. Nematic is one of the liquid crystal phases that molecules that have no positional order however tend to point in the same direction (along the director). The positional order of nematic liquid crystal can be cultivated by physical gelation mainly induced by the formation of intermolecular hydrogen bonds of gelling agents in solvents.

Chemical Structure

4-(trans-4-Pentylcyclohexyl)benzonitrile, CAS 61204-01-1
Chemical structure of 4-(trans-4-pentylcyclohexyl)benzonitrile, CAS 61204-01-1

General Information

CAS Number 61204-01-1
Chemical Formula C18H25N
Molecular Weight 255.40
Full Name 4-(trans-4-Pentylcyclohexyl)benzonitrile
Synonyms PCH5, PCH-5, 5PCH, 1-(trans-4-Amylcyclohexyl)-4-cyanobenzene, 4-(4-Pentylcyclohexyl)benzonitrile
Solubility Methanol
Classification / Family Benzonitrile, Nematic Liquid Crystals

Product Details

Purity >98% (1HNMR)
Form White powder/crystals
Melting Point Tm = 30.0 °C

MSDS Documentation

4-(trans-4-Pentylcyclohexyl)benzonitrile MSDS4-(trans-4-Pentylcyclohexyl)benzonitrile MSDS Sheet


Batch Quantity Price
M2358A1 10 g £140
M2358A1 25 g £280
M2358A1 50 g £460

Literature and Reviews

  1. Physical Gelation of Nematic Liquid Crystals with Amino Acid Derivatives Leading to the Formation of Soft Solids Responsive to Electric Field, N. Mizoshita et al., J. Photopolym. Sci. Technol., 13 (2), 307-312 (2000); DOI: 10.2494/photopolymer.13.307.
  2. Molecular Dynamics in the Rod-like Liquid Crystal 4-(trans-4-Pentylcyclohexyl)benzonitrile (PCH5) Probed by Muon Spin Resonance Spectroscopy, I. McKenzie et al., Phys. Procedia 30, 91–96 (2012); DOI: 10.1016/j.phpro.2012.04.047.
  3. Investigation of dielectric, optical and zeta potential properties of pure and zinc ferrite nanoparticles dispersed nematic liquid crystal PCH5. D. Gaur et al., Appl. Phys. A, 128, 230 (2022); DOI: 10.1007/s00339-022-05318-1.
  4. Optical Constants of Two Typical Liquid Crystals 5CB and PCH5 in the THz Frequency Range, R. Pant et al., J. Biol. Phys., 29, 335–338 (2003); DOI: 10.1023/A:1024485918938.
  5. Reconfigurable multi-compartment emulsion drops formed by nematic liquid crystals and immiscible perfluorocarbon oils, X. Wang et al., Langmuir 35 (49), 16312–16323 (2019); DOI: 10.1021/acs.langmuir.9b02864.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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