all-trans-Retinal is a polyene chromophore and a vitamin A aldehyde metabolite. It is the chemical basis of visual phototransduction, where it binds to opsin proteins to enable light detection in vision.
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CAS 116-31-4
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(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohexen-1-yl)nona-2,4,6,8-tetraenal
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