Please note that the content of this book mainly consists of articles that are available online from Wikipedia or other free sources. Aconitine or aconitine is a diterpenoid alkaloid derived from aconan. Aconitine can be hydrolyzed to benzoylaconine and aconine. The specific rotation is [ ]D +17.3° when dissolved in chloroform. Detection is carried out using Dragendorff's reagent according to Munier, where a color reaction from orange is observed. Aconitine is the main alkaloid in all Aconitum species, including the blue monkshood. Aconitine is present in all parts of the plant. The discovery and initial isolation is attributed to the Heidelberg pharmacist Philipp Lorenz Geiger.