The Collaborative International Dictionary of English v.0.48:

mauveine \mauve"["i]ne\, n. (Chem.)
   An artificial organic base, obtained by oxidizing a mixture
   of aniline and toluidine, and valuable for the dyestuffs it
   forms. [Written also mauvine.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Mauvine \Mauv"ine\, a.
   Mauve-colored.
   [1913 Webster]