Webster’s Revised Unabridged Dictionary · 1913
Sinapoline
Si·nap′o·line, n. [Sinapis + L. oleum oil.] (Chem.) A nitrogenous base, CO.(NH.C3H5)2, related to urea, extracted from mustard oil, and also produced artifically, as a white crystalline substance; — called also diallyl urea.