Structure of V2123-59. Cebin V, Eskalin V, Eskamicin, Stafac, Stephylomycin, Mikamycin, Ostreogrycin, Patricin, Pristinamycin, Streptogramin, Vernamycin; N-((6R,9S,10R,13S,15aS,22S,24aS)-22-benzyl-6-ethyl-10,23-dimethyl-5,8,12,15,17,21,24-heptaoxo-13-phenyldocosahydro-12H-pyrido[2,1-f]pyrrolo[2,1-l][1]oxa[4,7,10,13,16]pentaazacyclononadecin-9-yl)-3-hydroxypicolinamide compound with (12Z,6R,7R,8E,13Z,15E,17S)-17-hydroxy-6-isopropyl-7,15-dimethyl-32,33-dihydro-31H-5-oxa-11-aza-1(4,2)-oxazola-3(1,5)-pyrrolacycloicosaphane-8,13,15-triene-2,4,10,19-tetraone (1:1)
HPLC Analysis: Chromatogram (205 and 254nm) on C18 under gradient conditions (Alltima HL Rocket format, 10 to 100% ACN, 0.01% TFA, 10 min). Virginiamycin M1 (4.80 min), Virginiamycin S1 (5.48 min) and other minor analogues eluting from 4.70 to 6.00 min.
UV Spectra
Supplier Page from United States Biological for Virginiamycin Complex