21470-43-9

Basic information

• Product Name: 1,1'-Biphenyl, 4,4'-bis(octyloxy)-
• CAS NO: 21470-43-9
• Molecular Formula: C28H42O2
• Molecular Weight: 410.64
• Mol File: 21470-43-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 1,1'-Biphenyl, 4,4'-bis(octyloxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1'-Biphenyl, 4,4'-bis(octyloxy)-(21470-43-9)
• EPA Substance Registry System: 1,1'-Biphenyl, 4,4'-bis(octyloxy)-(21470-43-9)

Safety Data

• Hazardous Substances Data: 21470-43-9(Hazardous Substances Data)

Upstream product

• 937390-11-9 4-octyloxybenzeneboronic acid ethylene glycol ester 
• 91268-67-6 2,4,7,9-tetrabromobenzo[c]cinnoline 
• 55119-09-0 1,3,6,8-tetrabromo-9-methyl-9H-carbazole 

Relevant articles and documents

Liquid crystalline behavior of tetraaryl derivatives of benzo[c]cinnoline, tetraazapyrene, phenanthrene, and pyrene: The effect of heteroatom and substitution pattern on phase stability

A series of closely related tetrasubstituted derivatives of benzo[c]cinnoline (1), tetraazapyrene (2), phenanthrene (3), and pyrene (4) were investigated for their mesogenic properties using thermal, optical, spectroscopic, and powder XRD analyses. Only three 3,4-dioctyloxyphenyl derivatives exhibited mesogenic properties. Substitution of N for CH (3 → 1 and 4 → 2 pairs) and also increase of the core element size (1 → 2 and 3 → 4 pairs) significantly increases the mesophase stability. The findings and observed trends were rationalized by analysis of conformational properties which included calculation of the planarization energy, and modeling of aliphatic chain density and fill fractions. MO calculations showed that the tetraaza derivative 2c is significantly electron deficient and suitable for electron conductive materials. The Royal Society of Chemistry.