Chemistry:Biphenol

From HandWiki

In organic chemistry, a biphenol refers to compounds with the formula (C6H4OH)2. Such compounds formally result from the coupling of two phenols. All are colorless solids with the formula (C
6
H
4
OH)
2
. Three symmetrical isomers of biphenol exist:

Name Registry number PubChem Melting point (°C)
2,2'-Biphenol 1806-29-7 109
3,3'-Biphenol 612-76-0 124.8
4,4'-Biphenol 92-88-6 283

Additionally, three unsymmetrical isomers of biphenols exist

Name Registry number PubChem Melting point (°C)
2,3'-Biphenol 31835-45-7
2,4'-Biphenol 611-62-1 162–163
3,4'-Biphenol 18855-13-5 190