6302 -OEChem-04030813132D 0 0 0 0 0 0 0 0 0999 V2000 M END > 6302 > 2 > KEGG > C03490 > C03490 Complement component C4a > C03490 > http://www.genome.jp/kegg/kegg2.html > http://www.genome.jp/dbget-bin/www_bget?cpd+C03490 $$$$