[3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexen-1-yl)-2,4,6,8-nonatetraen-1-yl]triphenyl-phosphonium Sulfate is an intermediate used in the synthesis of Echinenone (E325630), which is a protective carotenoid. Echinenone is an analogue of β-Carotene (C184250), the most important of the provitamins A. Widely distributed in the plant and animal kingdom. In plants it occurs almost always together with chlorophyll. Vitamin A precursor. Ultraviolet screen.
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