6300 -OEChem-04030813132D 0 0 0 0 0 0 0 0 0999 V2000 M END > 6300 > 2 > KEGG > C03488 > C03488 Complement component C2a > C03488 > http://www.genome.jp/kegg/kegg2.html > http://www.genome.jp/dbget-bin/www_bget?cpd+C03488 $$$$