The chemical Fucoxanthin has a designated molecular formula of C42H58O6 and a molecular weight of 658.920 g/mol. Synonyms may include: 5-18-04-00673 (Beilstein Handbook Reference), BRN 0073179, CCRIS 4055, Fucoxanthin (from Wakame) (Brown Seaweed) (Undaria Pinnatifida), UNII-06O0TC0VSM (ChemID).