... is made by oxidation of 6,6’-dimethyl-2,2’-bipyridine CAS: 4411-80-7. [2,2'-Bipyridine]-6,6'-dicarboxylic acid is off-white ... from warehouse. 6,6’-dimethyl-2,2’-bipyridine CAS: 4411-80-7 2,2'-Bipyridine-6,6'-dicarboxylic acid CAS:4479-74-7 6,6'-Dihydroxy-2,2 ... '-bipyridyl CAS:103505-54-0 2,2'-Bipyridine ...