4700 -OEChem-04030813132D 0 0 0 0 0 0 0 0 0999 V2000 M END > 4700 > 2 > KEGG > C01539 > C01539 Viologen > C01539 > http://www.genome.jp/kegg/kegg2.html > http://www.genome.jp/dbget-bin/www_bget?cpd+C01539 $$$$