http://www.wikidata.org/entity/Q27895938,5748159,Indigotine P free acid,"(2E)-3-oxo-2-(3-oxo-5,7-disulfo-1H-indol-2-ylidene)-1H-indole-5,7-disulfonic acid",C16H10N2O14S4,582.496,0
http://www.wikidata.org/entity/Q27895966,62499,Acid blue 7 free acid,"benzyl-[4-[[4-[benzyl(ethyl)amino]phenyl]-(2,4-disulfophenyl)methylidene]cyclohexa-2,5-dien-1-ylidene]-ethylazanium",C37H37N2O6S2+,669.831,0
http://www.wikidata.org/entity/Q27895974,10051544,Vitamin A myristate,"[(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenyl] tetradecanoate",C34H56O2,496.82,0