(trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) belongs to the bicyclohexyl family, joined by a unique blend of a propyl and a pentyl group on each cyclohexane ring. Anyone dealing with chemical materials can spot its value—this compound brings together stability and adaptability. Specialty chemical industries use these bicyclohexyl derivatives to tune key properties in displays and specialty fluids. Looking at its name does more than offer a mouthful for chemists; the “trans,trans” structure shapes everything from appearance to how it reacts under pressure and temperature changes.
The structure of (trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) can seem daunting until you get to know it: two cyclohexane rings directly linked, one arm sporting a propyl, the other holding a pentyl side chain. This arrangement delivers rigidity along with a bit of mobility by keeping the rings in a fixed orientation. In the lab, it shows up as solid flakes, sometimes presenting as a powder or crystalline pearls, depending on purity and handling. On heating, it transforms to a colorless to pale liquid, staying near odorless and clean—useful in applications where sensory interference is a problem. Density runs close to 0.87 to 0.9 grams per cubic centimeter, which lines up with peer materials in the liquid crystal sector. This density matters in real-world use because improper density throws off calculations for mixing and flow, especially with equipment built for tight tolerances.
The molecular formula stands as C19H36, and a molecular weight right around 264.5 grams per mole makes it straightforward for storage, transport, and molecular calculations. Factories typically package it in kilogram-scale lots as flakes, fine powder, small solid pearls, or clear liquid solutions. Each form has its uses: flakes or powders lend themselves to direct blending, pearls give slower dissolution, and solutions help with accurate dosing. This compound’s low volatility makes it safe to handle at room temperature, and its geometric stability resists breakdown unless exposed to high heat or aggressive chemicals—qualities you want for reliability in advanced electronic displays or high-stress test conditions. In my own experience, solid forms cut hassle during weighing and minimize airborne particles, which matters in labs prioritizing cleanliness and consistent measurement.
When it comes to customs and international shipping, classification matters. (trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) fits under HS Code 2906.19, the heading for cyclohexane derivatives. Knowing the correct code prevents border delays and surprise tariffs. Regulatory clarity spares a company headaches later, especially as countries tighten chemical screening for environmental or health reasons. Efficient logistics teams learn to keep clean records using the right HS Code, reducing paperwork snags and trimming costs in a competitive market.
Engineers and researchers value this bicyclohexane for its performance as a core material in liquid crystal displays (LCDs), particularly in telecommunications, televisions, test panels, and other sensitive optical devices. Liquid crystals stand out for their precision tuning, and sturdy molecules like this enable better temperature control, sharper image contrast, and longer device life. Some synthetic routes rely on it as an intermediate, letting developers take easy detours into new molecular territory for next-generation displays and specialty lubricants. In chemical research, its well-defined structure gives a reliable template for chemical modification or analysis, which can lead to further advances in electronics or even pharmaceuticals.
Sourcing high-purity (trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) can tighten budgets but pays off with less downtime, fewer accidents, and better products. Working with solids or solutions avoids spills common with some volatile raw chemicals. Although not classified as highly hazardous, handling always means gloves, goggles, and ventilation. Nobody wants unexpected skin or respiratory irritation derailing a day’s work, especially with so many safer alternatives on the market. Material safety data sheets indicate low toxicity in routine use, but like so many organic chemicals, careless storage can turn a safe material into a fire risk. Reactive chemicals stored close by need a buffer zone, as does anything with open flames. On a factory floor or in a university lab, practical training makes more difference than a hundred labels on a drum.
Chemists break down (trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) further with specialized analysis. Its ordered structure helps with x-ray diffraction, revealing the alignment that underpins more advanced display technologies. The small differences between the trans,trans isomer and cis combinations result in noticeably different behaviors. Accurate structural knowledge gives researchers a head start. Over the years, I’ve seen improvements in device performance by making deliberate switches between similar molecules, all powered by careful attention to the molecular side of the story. Solubility in organic solvents like hexane or toluene is high; water solubility, predictably, is near zero. For folks mixing chemical batches, this solubility pattern keeps good separation between hydrophobic and water-based materials in multi-phase applications.
The demand for reliability in electronics and optics means the chemistry behind the scenes can no longer be ignored. As the world moves to cleaner manufacturing, tracking every raw material and its environmental footprint becomes unavoidable. Working with compounds like (trans,trans)-4-Propyl-4'-pentyl-1,1'-bi(cyclohexane) invites a closer look at the balance between performance, safety, sourcing, and disposal. Researchers continue to hunt for sustainable methods to make and recycle specialty hydrocarbons. For every big advance in display technology, the supporting cast of unique organic molecules deserves careful attention—because the right chemistry underpins not just what we see on screens, but how those products shape the future of electronics and materials science.
