3d image of protopine skeletal formula

protopine alkaloid opium poppy opioid opiate corydalis papaveraceae fumaria officinalis histamine receptors platelet aggregation analgesic herbal phytochemical phytotherapy plant herb natural herbalism pharmacognosy pharmacopoeia anesthesia muscle relaxation analgesia pain relief cell biochemistry biomolecule bioactive biochemical metabolite metabolism biosynthesis biosynthetic intermediate biogenesis synthesis derivative bioprecursor metabolic endogenous molecule molecular formula skeletal structural structure 3d