P-pyridyl chalcone is on the base line with TLC , even with ethylacetate as elution system ... Is it Okay ?

I used alot of systems , HEX : EA   50 : 50DCM : MEOH 50 : 50Even ethyl acetate alone and the chalcone isn't move on the TLC . I don't know if it is okay ?!What is the cause ?! I measured the...

01 April 2016 5,538 2 View