Table 2: Composition of the OECD TG 201 medium.

NutrientFinal concentration
(mg/L)

NaHCO3 (sodium hydrogen carbonate) 50.0
NH4Cl (ammonium chloride) 15.0
MgCl2·6H2O (magnesium chloride) 12.0
CaCl2·2H2O (calcium chloride) 18.0
MgSO4·7H2O (magnesium sulphate) 15.0
KH2PO4 (potassium dihydrogen phosphate) 1.60
FeCl3·6H2O (ferric chloride) 0.064
Na2EDTA·2H2O (EDTA disodium salt) 0.100
H3BO3 (boric acid) 0.185
MnCl2·4H2O (manganese(II) chloride) 0.415
ZnCl2 (zinc chloride) 0.00300
CoCl2·6H2O (cobaltous chloride) 0.00150
Na2MoO4·2H2O (sodium molybdate) 0.00700
CuCl2·2H2O (copper(II) chloride) 0.00001