apparicine
... that establishing the chemical structure of apparicine was a notable early use of nuclear magnetic resonance decoupling?
... that establishing the chemical structure of <b id="mwBCI"><a href="./Apparicine" id="mwBCM" rel="mw:WikiLink" title="Apparicine">apparicine</a></b> <i id="mwBCQ">(pictured)</i> was a notable early use of <a href="./Nuclear_magnetic_resonance_decoupling" id="mwBCU" rel="mw:WikiLink" title="Nuclear magnetic resonance decoupling">nuclear magnetic resonance decoupling</a>?