N-OCB
The n-OCB family of liquid crystalline molecules consist of a relatively rigid cyanobiphenyl section along with a flexible alkyl chain.
6OCB

The molecule OCB ((hexyloxy)cyanobiphenyl)
8OCB

The molecule 8OCB ((octyloxy)cyanobiphenyl) forms a liquid crystalline phase. 8OCB is one of the components of the E7 mixture.