[{"from": "human", "value": "Provide a description of this molecule. [C][C][=C][Branch2][Ring1][=N][C][=C][Branch1][P][C][C][C][Branch1][Ring2][O][Ring1][=Branch1][Branch1][C][C][C][=Branch1][C][=O][O][C][=Branch1][Branch1][=C][Ring1][=C][O][C][C]"}, {"from": "gpt", "value": "The molecule is a chromanol that is 6-hydroxychromane which is substituted by a carboxy group at position 2 and by methyl groups at positions 2, 5, 7, and 8. A cell-permeable, water-soluble analogue of vitamin E, it is used as a standard for measuring the antioxidant capacity of complex mixtures. It has a role as an antioxidant, a radical scavenger, a Wnt signalling inhibitor, a neuroprotective agent and a ferroptosis inhibitor. It is a chromanol, a member of phenols and a monocarboxylic acid."}]