4-Ethynyl-4'-pentyl-1,1'-biphenyl

4-Ethynyl-4'-pentyl-1,1'-biphenyl - Names and Identifiers

Name	4-ethynyl-4'-pentylbiphenyl
Synonyms	4-Ethynyl-4'-pentylbiphenyl 4-ethynyl-4'-pentylbiphenyl 4-pentyl biphenyl acetylene 4-Pentyl-4'-ethynyl-1,1'-biphenyl 4-Ethynyl-4'-pentyl-1,1'-biphenyl 1,1'-biphenyl, 4-ethynyl-4'-pentyl- 1,1'-Biphenyl, 4-ethynyl-4'-pentyl-
CAS	80563-43-5
InChI	InChI=1/C19H20/c1-3-5-6-7-17-10-14-19(15-11-17)18-12-8-16(4-2)9-13-18/h2,8-15H,3,5-7H2,1H3

4-Ethynyl-4'-pentyl-1,1'-biphenyl - Physico-chemical Properties

Molecular Formula	C19H20
Molar Mass	248.36
Density	0.99±0.1 g/cm3(Predicted)
Melting Point	80 °C(Solv: hexane (110-54-3))
Boling Point	363.2±31.0 °C(Predicted)
Flash Point	168.9°C
Vapor Presure	3.83E-05mmHg at 25°C
Storage Condition	2-8°C
Refractive Index	1.569

4-Ethynyl-4'-pentyl-1,1'-biphenyl - Introduction

4-ethynyl-4 '-pentylbiphenyl is an organic compound with the chemical formula C18H20, which contains a pentylalkyl chain and two benzene rings. It is a colorless to yellowish solid with low solubility.

This compound is commonly used as a liquid crystal material for display technologies such as liquid crystal displays and liquid crystal televisions. It has a certain control ability in the arrangement of liquid crystal molecules.

The process for the preparation of 4-ethynyl-4 '-pentylbiphenyl is generally carried out by an alkynylation reaction. Phenylacetylene and pentyl bromide can be used as starting materials, catalyzed by alkali metals and solvents, under appropriate temperature and reaction conditions. The resulting product can be purified by cooling crystallization or column chromatography.

It is necessary to pay attention to the safety of 4-ethynyl-4 '-pentylbiphenyl when using and handling them. It may be irritating to the eyes and skin, so wear appropriate protective equipment such as safety glasses and gloves during operation. Avoid contact with oxidants and acids during storage and transportation to avoid dangerous reactions. In addition, it should be kept in a dry, well-ventilated place, away from fire and heat sources. For more detailed safety information, refer to the safety data sheet of the chemical concerned.

Last Update：2024-04-10 22:29:15