trans,trans-4'-Pentylbicyclohexyl-4-carboxylic Acid TCI P2437

Chemical Identity

CAS No.: 65355-33-1
PubChem: CID 1712164·SID 354334174
Formula: C18H32O2
Molecular weight: 280.4 g/mol
Purity: >98.0%(GC)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 4-(4-pentylcyclohexyl)cyclohexane-1-carboxylic acid
SMILES: CCCCCC1CCC(CC1)C2CCC(CC2)C(=O)O
InChIKey: VRPANQODGRNWRV-UHFFFAOYSA-N

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TCI P2437 trans,trans-4'-Pentylbicyclohexyl-4-carboxylic Acid (CAS 65355-33-1) is an organic compound used as a building block for synthesizing liquid crystal materials. The molecule consists of two cyclohexane rings joined in a trans,trans configuration, with a pentyl chain at one end and a carboxylic acid group at the other. In the laboratory, it usually serves as the starting point for preparing esters, amides, and other derivatives that lead to mesogenic molecules, meaning molecules that can form liquid crystal phases.

Researchers choose this compound because the trans,trans-bicyclohexyl core gives the molecule a straight, rigid, elongated shape. That shape matters a great deal, because it lets molecules pack in an ordered way within a liquid crystal phase. The pentyl chain adds flexibility at the end of the molecule, which affects its phase behavior. The carboxylic acid group also reacts easily with alcohols, phenols, and amines through common coupling reactions. As a result, researchers can design a wide range of derivatives from a single core structure, which makes the compound a practical and versatile starting material for systematic structure–property studies.

In Indonesia, this material suits laboratories working in materials chemistry, synthetic organic chemistry, and materials physics, including research groups at universities and research institutions. Research teams studying liquid crystals, display-related materials, or ordered soft matter can use it as a reliable core for making new mesogenic compounds. It also fits well in advanced coursework and thesis projects where students practice esterification and amidation on a well-defined rigid scaffold, then characterize how the resulting derivatives behave.

Related TCI products

Liquid crystal synthesis: the rigid, linear trans,trans-bicyclohexyl core provides the elongated molecular shape needed to build mesogenic molecules that form ordered liquid crystal phases.
Ester preparation: the carboxylic acid group couples readily with alcohols and phenols through common coupling reactions, giving direct access to ester-linked liquid crystal candidates.
Amide derivative synthesis: the acid group can react with amines under standard conditions, letting researchers explore amide-linked derivatives built on the same bicyclohexyl framework.
Structure–property studies: because many derivatives can come from one core, researchers can compare how changing the attached groups affects phase behavior while keeping the central scaffold constant.
Teaching and thesis research: this well-defined building block works well in advanced university projects that combine organic coupling reactions with the characterization of materials that form liquid crystal phases.

Brand	TCI (product code P2437)
CAS number	65355-33-1
Molecular formula	—
Purity	—
Category	Materials Science > Material Building Blocks > Liquid Crystal (LC) Building Blocks
Pack sizes	available in TCI's standard pack sizes; please confirm the current options with our team
Physical form	see the TCI product specification sheet and Certificate of Analysis
Storage	follow the conditions on the TCI label and Safety Data Sheet (SDS)

Keep this compound in its original, tightly closed container in a cool, dry, well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizing agents. If the product label or Safety Data Sheet gives a specific storage temperature, use that. Reseal the container promptly after each use to protect it from moisture and contamination. Handle the material in a fume hood or another well-ventilated area, and wear standard personal protective equipment, including a lab coat, safety glasses, and chemical-resistant gloves. Avoid creating dust, and avoid contact with skin, eyes, and clothing. Read the TCI Safety Data Sheet before use, and dispose of waste according to institutional and local regulations.

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