nSinapine(Chem) An alkaloid occuring in the seeds of mustard. It is extracted, in combination with sulphocyanic acid, as a white crystalline substance, having a hot, bitter taste. When sinapine is isolated it is unstable and undergoes decomposition.
Century Dictionary and Cyclopedia
nsinapineAn organic base, C16H23NO5, existing as a sulphocyanate in white mustardseed. The free base is quite unstable, and has not been obtained.
Webster's Revised Unabridged Dictionary
L. sinapi, sinapis, mustard, Gr. : cf. F. sinapine,
Sinapin acid sulfate, 89.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher