physostigmine alkaloid molecule. present in calabar bean and manchineel tree, acts as acetylcholinesterase inhibitor. skeletal.

physostigmine alkaloid molecule present calabar bean manchineel tree acts as acetylcholinesterase inhibitor skeletal physostigmin eserine esere cholinesterase poison glaucoma gastric emptying antidote alzheimer intoxication physostigma venenosum hippomane manchioneel mancinella ordeal atoms atomic molecular compound composition chemical chemistry structure formula line drawing flat icon