trans,trans-4-[(E)-1-Propenyl]-4'-propylbicyclohexyl TCI P2371

trans,trans-4-[(E)-1-Propenyl]-4'-propylbicyclohexyl from TCI (product code P2371, CAS 279246-65-0) is a bicyclohexyl compound. It carries an E-configured propenyl group at one end and a propyl chain at the other. The compound belongs to the alkenyl bicyclohexane family of liquid crystals, which is widely studied as a component of nematic liquid crystal mixtures. In the laboratory, it can be used directly as a component in test mixtures. It can also serve as a starting material for further modification at the propenyl double bond, which makes it useful in both formulation work and synthetic research.

Its main advantage is the combination of two rigid trans-cyclohexane rings with an alkenyl terminal group, a structural feature generally associated with low rotational viscosity. Because the molecule has no aromatic rings, it tends to show low optical anisotropy and good stability under light. The trans,trans configuration and the E geometry of the double bond are important, because different isomers can produce very different mesophase behaviour. Preparing material with this level of stereochemical purity in-house is difficult and time-consuming, so a defined commercial source from TCI saves researchers considerable effort.

In Indonesia, this material is relevant to materials research, applied physics and organic chemistry laboratories that study liquid crystals and optics. University research groups and research institutes working on mesophase behaviour, mixture formulation or structure–property relationships can use it as a well-defined reference building block. It suits projects that compare how terminal alkenyl groups and saturated ring cores affect liquid crystal properties. It also suits synthetic work that uses the propenyl double bond as a point for further functionalization.

• Nematic mixture formulation: the compound can be added directly as a component in test liquid crystal mixtures, where its alkenyl bicyclohexane structure helps researchers study how it affects mixture behaviour.
• Rotational viscosity studies: its combination of rigid trans-cyclohexane rings and an alkenyl end group is generally linked to low rotational viscosity, which makes it a useful subject for viscosity comparisons.
• Low-birefringence optical research: because it has no aromatic rings, it tends to show low optical anisotropy, so it suits work on mixtures where low birefringence is the target.
• Synthetic modification: the propenyl double bond gives a reactive site for further chemical transformation, so the compound can serve as a starting material for new liquid crystal building blocks.
• Stereochemistry–mesophase relationship studies: its defined trans,trans and E configuration makes it a suitable reference for investigating how isomer geometry changes mesophase behaviour.

Store the product in its original, tightly closed TCI container under the conditions stated on the label and the Safety Data Sheet. Keep it in a cool, dry, well-ventilated place away from heat sources, direct sunlight and strong oxidizing agents. If you need to transfer the material, use clean, dry, chemically compatible glass containers with secure closures, and label them clearly. Handle the compound with standard laboratory precautions, including gloves, safety glasses and a lab coat. Work in a fume hood or a well-ventilated area, avoid contact with skin and eyes, and avoid inhaling dust or vapour. Read the SDS before first use, and dispose of residues according to local regulations and your institution's waste procedures.

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