Pyrazine, >98.0% (GC), C4H4N2, CAS Number290379, ccris 1331, pdiazine, mupyrazine;, 1,4diazabenzene, paradiazine, 1,4diazine, mixture, piazine, pyrazin, 1,4diazin, 500g, 118 deg.C, CHEBI:30953, White, (5)3827, 80.09, KYQCOXFCLRTKLSUHFFFAOYSAN, 54 deg