Assertion: alkaloid's nitrogen atom | /r/HasProperty | primary mescaline
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Source sentences:
text: The nitrogen of alkaloids Alkaloids, taken in their broadest sense, may have a nitrogen atom which is primary (mescaline), secondary (ephedrine), tertiary (atropine) or quaternary (one of the N atoms of tubocurarine), and this factor affects the derivatives of the alkaloid which can be prepared and the isolation