4-Dodecylphenol, mixture of isomers, 250mg

8?H),17?,18?(H),21ß(H)-15 (14-13)-abeo-14,17-dimethyl-26,28-dinorhopane,neat,neat,ca. 5 µg,

Sulfamethazine, 1000µg/ml in MeOH, 1ml

Acetonitrile, 5ml