Interesting, however the indole ring is very common in biomolecules, and is also present in tryptophan, serotonin, melatonin and others. Most of these will not

Interesting, however the indole ring is very common in biomolecules, and is also present in tryptophan, serotonin, melatonin and others. Most of these will not have fecal odors, I3PA probably won't either. For another stinky indole derivative, check out 3-methylindole.