oxaline

from The Collaborative International Dictionary of English v.0.48

Glyoxaline \Gly*ox"a*line\, n. (Chem.)
   A white, crystalline, organic base, {C3H4N2}, produced by the
   action of ammonia on glyoxal, and forming the origin of a
   large class of derivatives hence, any one of the series of
   which glyoxaline is a type; -- called also {oxaline}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Oxaline \Ox"a*line\, n. [Glyoxal + -ine.] (Chem.)
   See {Glyoxaline}.
   [1913 Webster]