title: Columbamine
text: # Columbamine
  
  Columbamine is a chemical with the molecular formula $C_{20}H_{20}NO_4.$ It is an organic heterotetracyclic compound and a berberine alkaloid. Columbamine can be also called dehydroisocorypalmine. It has a molecular weight of 338.4 g/mol and its monoisotopic mass is 339.1470581677 daltons. Columbamine is soluble in DMSO and is a solid at room temperature.
  
  ## Occurrence
  
  Columbamine has been found in Plumeria rubra.
  
  