The molecule is a synthetic 17-mer oligopeptide derived from the Ara h2 protein comprising N-acetyl-L-alpha-glutamyl, L-arginyl, L-asparaginyl, L-prolyl, L-tyrosyl, L-seryl, L-prolyl, L-seryl, L-glutaminyl, L-asparaginyl, L-prolyl, L-tyrosyl, L-seryl, L-prolyl, L-seryl, L-glutaminyl and L-lysinamide residues coupled in sequence.
(4S)-4-acetamido-5-[[(2S)-1-[[(2S)-4-amino-1-[(2S)-2-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-5-amino-1-[[(2S)-4-amino-1-[(2S)-2-[[(2S)-1-[[(2S)-1-[(2S)-2-[[(2S)-1-[[(2S)-5-amino-1-[[(2S)-1,6-diamino-1-oxohexan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-1,4-dioxobutan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-3-hydroxy-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-3-hydroxy-1-oxopropan-2-yl]amino]-3-(4-hydroxyphenyl)-1-oxopropan-2-yl]carbamoyl]pyrrolidin-1-yl]-1,4-dioxobutan-2-yl]amino]-5-carbamimidamido-1-oxopentan-2-yl]amino]-5-oxopentanoic acid