The molecule is the anion resulting from the removal of a proton from the arsenate group of arseno-mycothiol. It is a conjugate base of an arseno-mycothiol. It is a conjugate acid of an arseno-mycothiol(2-).
[(2R)-2-acetamido-3-[[(2R,3R,4R,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-2-[(2R,3S,5R,6R)-2,3,4,5,6-pentahydroxycyclohexyl]oxyoxan-3-yl]amino]-3-oxopropyl]sulfanyl-hydroxyarsinate