(9S)-9-Deoxo-12-deoxy-9,12-epoxyerythromycin 134108-11-5 9-Deoxo-12-deoxy-9,12-epoxyerythromycin A 69328 A-69328 Erythromycin, 9-deoxo-12-deoxy-9,12-epoxy-, (9S)-