porphyroxine
/ˌpɔːfɪˈrɒksiːn/(also porphyroxin) Chemistry
noun
A pentacyclic phenolic alkaloid, C20H21NO6, originally derived in an impure state from opium and present in various species of poppy.
Origin
Mid 19th century; earliest use found in Robert Thomson (1810–1864), medical officer of health. From German Porphyroxin from ancient Greek πορϕύρα purple + oxy- + -in; so called because it gives a red colour when heated with dilute mineral acid.