4-[2-(trans-4-Propylcyclohexyl)ethyl]cyclohexanone TCI P2372

Chemical Identity

CAS No.: 117923-32-7
PubChem: CID 14495772·SID 354333414
Formula: C17H30O
Molecular weight: 250.4 g/mol
Purity: >98.0%(GC)

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 4-[2-(4-propylcyclohexyl)ethyl]cyclohexan-1-one
SMILES: CCCC1CCC(CC1)CCC2CCC(=O)CC2
InChIKey: OLRRTAGESHHXPY-UHFFFAOYSA-N

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4-[2-(trans-4-Propylcyclohexyl)ethyl]cyclohexanone from TCI (product code P2372) is an alicyclic ketone used to synthesize liquid crystal compounds. Its structure has a cyclohexanone ring joined by an ethylene bridge to a trans-cyclohexane ring that carries a propyl chain. It is the short-tail analogue of the pentyl derivative in the same series. In the laboratory it serves as a versatile intermediate. Its carbonyl group is the starting point for building a range of mesogenic molecules with different terminal groups.

Researchers choose this compound because its molecular framework already has the trans configuration. That configuration gives the molecule a straight, rod-like shape, which is the main requirement for a liquid crystal phase to form. The shorter propyl chain usually produces different phase behaviour from analogues with longer alkyl chains. This makes the compound important for systematic studies of how alkyl tail length affects mesogenic properties. The ketone group is easy to modify through olefination, nucleophilic addition or reduction, giving alkenyl, alcohol or aryl derivatives for further synthesis.

In Indonesia, this material suits organic chemistry and materials chemistry laboratories at universities and at research centres that develop functional materials. Typical users are research groups working on liquid crystal synthesis, structure–property studies of mesogens, and the preparation of advanced organic materials for display and optical applications. Graduate students and researchers can use it as a dependable building block in multi-step synthetic routes. Because it comes from TCI, a widely used reagent brand, it fits well into established procurement and quality practices in academic and industrial research laboratories.

Related TCI products

Liquid crystal synthesis: the trans-configured alicyclic framework provides the rod-like geometry that mesogenic molecules need, so it is a practical starting point for new liquid crystal compounds.
Alkyl chain-length studies: as the short-tail propyl analogue of the pentyl derivative in the same series, it lets researchers compare how alkyl tail length changes phase behaviour in a systematic way.
Olefination reactions: the reactive ketone carbonyl can be converted into alkenyl derivatives, which are widely used as terminal or linking groups in liquid crystal molecular design.
Nucleophilic addition and reduction: the carbonyl group readily gives alcohols and aryl-substituted derivatives, so one intermediate can lead to many structurally different target molecules.
Functional materials research: university and institutional laboratories developing advanced organic materials can use it as a well-defined building block in multi-step syntheses of new mesogens.

Brand	TCI (product code P2372)
CAS number	117923-32-7
Molecular formula	—
Purity	—
Category	Materials Science > Material Building Blocks > Liquid Crystal (LC) Building Blocks
Pack sizes	available in TCI's standard pack sizes; please check the product listing for the current options
Physical form	refer to the TCI certificate of analysis and product label
Storage	follow the storage conditions on the TCI label and Safety Data Sheet

Store this compound in its original, tightly closed TCI container in a cool, dry, well-ventilated place, away from direct sunlight, heat sources and strong oxidizing agents. Follow the storage temperature on the product label and Safety Data Sheet. Use clean, dry glass or chemically compatible containers if you need to transfer the material. Handle it in a fume hood while wearing appropriate personal protective equipment, including gloves, safety glasses and a laboratory coat. Avoid inhaling dust or vapours, and avoid contact with skin and eyes. Read the Safety Data Sheet before first use, and dispose of waste according to institutional and local regulations.

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