IUPAC Name: (2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-6-amino-2-[[(2S)-5-amino-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-1-[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[(2S)-2-[[2-[[2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-5-carbamimidamidopentanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-methylbutanoyl]amino]acetyl]amino]-5-carbamimidamidopentanoyl]pyrrolidine-2-carbonyl]amino]-4-carboxybutanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-3-(1H-indol-3-yl)propanoyl]amino]-4-methylsulfanylbutanoyl]amino]-3-carboxypropanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]-5-oxopentanoyl]amino]hexanoyl]amino]-5-carbamimidamidopentanoyl]amino]-3-(4-hydroxyphenyl)propanoyl]amino]acetyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoic acid Synonyms: Peptide E (adrenal medulla), Peptide E, 78355-50-7, Opioid peptide E, Peptide E proenkephalin, Proenkephalin peptide E, BD5VPY5AXN, UNII-BD5VPY5AXN, Peptide E (ox adrenal medulla), DTXSID40229011, DA-61490