Answers are grounded in this paper and cite their sources.
An ammonium analogue of the main component of the anti-arthritic drug myochrysine, disodium thiomalato-S-arate(I) polymer, is examined by both positive- and negative-ion electrospray ionization (ESI) mass spectrometry; the principal peaks are those of a tetrameric species; subsequent examination of a drug sample by the same technique showed that the principal peaks were also those of a tetrameric species.
No takes yet. Share an insight, caveat, or question.
Howard-Lock et al. (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: