The molecule is a glycopeptide consisting of the Ara6 epitope attached to an Ala-Asn-Ser-Ser-Phe-Ala-Pro-NH2 heptapeptide via a [(2-hydroxyethoxy)imino]acetyl linker. It contains a beta-D-Araf-(1->2)-alpha-D-Araf-(1->5)-[beta-D-Araf-(1->2)-alpha-D-Araf-(1->3)]-alpha-D-Araf-(1->5)-alpha-D-Araf-yl group.
(2S)-N-[(2S)-1-[[(2S)-1-[[(2S)-1-[[(2S)-1-[(2S)-2-carbamoylpyrrolidin-1-yl]-1-oxopropan-2-yl]amino]-1-oxo-3-phenylpropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]-2-[[(2S)-2-[[(2E)-2-[2-[(2S,3S,4S,5R)-5-[[(2S,3S,4S,5R)-4-[(2S,3S,4R,5R)-3-[(2S,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-5-[[(2S,3S,4R,5R)-3-[(2S,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]oxy-4-hydroxy-5-(hydroxymethyl)oxolan-2-yl]oxymethyl]-3-hydroxyoxolan-2-yl]oxymethyl]-3,4-dihydroxyoxolan-2-yl]oxyethoxyimino]acetyl]amino]propanoyl]amino]butanediamide