[gone35]

If by "batshit crazy" you meant toxicity, then yes that's clearly incorrect, as others have repeatedly pointed out. Perhaps you meant chemical affinity in some general way --eg homochirality, or presence of commonly targeted functional groups?

If so, note this is the exact opposite of 'biocompatible' in the usual sense (as in 'inert'): biosynthesized molecules evolved precisely to be exceedingly good at reacting/interfering with biological processes, not the other way around. So if anything, it would be evidence they could well do batshit crazy, unintended things to life --as they often do.