2-Quinoxalinecarboxmide, N,N'-[2,4,12,15,17,25-hexamethyl-11,24-bis(1-methylethyl) -27-(methylthio)-3,6,10,13,16,19,23,26-octaoxo-9,22-dioxa -28-thia-2,5,12,15,18,25-hexaazabicyclo[12.12.3]nonacosan e-7,20-diyl]bis- 512-64-1 ECHINOMYCIN Echinomycin A Levomycin NSC526417 Quinomycin A S-426-S (Lepetit) WLN: T C-16-6-16-/CE& A B C- C- 2CP E& AS CX C-S DNV GMV KOV NNV PXNV TMV A&OV D&NVTJ D1