This substance is supplied with certified chromatographic purity. The exact value can be found on the certificate. Produced by PhytoLab GmbH & Co. KG Synonyms: Xanthophyll; alpha-Carotene-3,3'-diol; beta, epsilon-carotene; beta, epsilon-carotene-3,3'-diol; Lutein Molecular Formula: C40H56O2...