Fast-Media® Kan LB Microwaveable medium for selection of E. coli transformants Fast-Media® Kan LB formulation is a Lysogeny Broth based liquid medium supplemented with kanamycin. 1 pouch = 200 ml LB liquid medium Selective Antibiotic: Kanamycin Stability: 48h at 37°C or 4 weeks ar 4°C Sterility guaranteed