Structural characterization of two isomeric dimethoxyindoles of biological interest, using high‐ and low‐energy collisional spectroscopy

Abstract
It is not possible to distinguish isomers of biologically important dimethoxyindoles using electron‐ionization mass spectra, but they may be distinguished by collisionally activated dissociation. In particular, energy‐resolved mass spectrometry yields the best data for distinguishing between these isomers.