Antheraxanthin (from ánthos, Greek for \"flower\" and xanthos, Greek for \"yellow\") is a bright yellow accessory pigment found in many organisms that perform photosynthesis. It is a xanthophyll cycle pigment, an oil-soluble alcohol within the xanthophyll subgroup of carotenoids. Antheraxanthin is both a component in and product of the cellular photoprotection mechanisms in photosynthetic green algae, red algae, euglenoids, and plants.

CAS：68831-78-7
中文别名：
英文别名：Antheraxanthin;3,3\'-Dihydroxy-5,6-monoepoxy-β-carotin;
分子式：C40H56O3
分子量：584.871
精确质量：584.423
Psa：52.99
Logp：9.7586