Biologix LB Broth, Dry Powder by Biologix is bottled LB broth medium for growing and maintaining E. coli and other bacteria in molecular biology work. Choose the standard formula with 10 g/L sodium chloride or the Lennox low-salt version with 5 g/L, both at pH 7.0. Dissolve, autoclave and use, from 250 g bottles with a 36-month shelf life.