UCHEM has been developing manufacturing symmetric substituted 2,2’-bipyridine derivatives. Currently, around 100 analogues are available from warehouse under kilograms. The following bipyridines are available in kilograms and could be produced in large quantity. 4,4’-Dimethyl-2,2’-bipyridine 2,2’-Bipyridine-4,4’-dicarboxylic acid 2,2’-Bipyridine-4,4’-dimethanol 4,4’-Dibromo-2,2’-bipyridyl 4,4’-Dimethoxy-2,2’-bipyridyl 4,4’-di-tert-butyl-2,2’-bipyridyl 4,4’-Diamino-2,2’-bipyridyl 5,5’-Dimethyl-2,2’-bipyridine 2,2’-Bipyridine-5,5’-dicarboxylic acid 5,5’-Dibromo-2,2’-bipyridine 6,6’-Dimethyl-2,2’-bipyridyl 2,2’-Bipyridine-6,6’-dicarboxylic acid 2,2’-Bipyridine-3,3’-dicarboxylic acid