# 694: MEDIUM E-2 ## Main sol. 694 3.5 g NaNH4HPO4 x 4 H2O 7.5 g K2HPO4 x 3 H2O 3.7 g KH2PO4 10 ml MgSO4 x 7 H2O (100 mM) 0.001 % Thiamine 1000 ml Tap water 1. Adjust pH to 7.0. n-Octane is evaporated in a desiccator as sole source of carbon.