2,2'-Dipyridyl

**Definition:** A reagent used for the determination of iron.

**Tree numbers:** - D03.383.725.220

**Synonyms:** - 2,2-Bipyridine - 2,2 Dipyridyl - 2,2' Dipyridyl - 2,2-Dipyridyl - 2,2-Bipyridyl - 2,2'-Bipyridine - alpha,alpha-Dipyridyl