IUPAC:2-[(5S,11S,14R)-11-(3-carbamimidamidopropyl)-14-ethyl-12-methyl-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazabicyclo[15.3.1]henicosa-1(21),17,19-trien-5-yl]acetic acid; methanesulfonic acid
IUPAC:2-[(5S,11S,14R)-11-(3-carbamimidamidopropyl)-14-ethyl-12-methyl-4,7,10,13,16-pentaoxo-3,6,9,12,15-pentaazabicyclo[15.3.1]henicosa-1(21),17,19-trien-5-yl]acetic acid; methanesulfonic acid