retinal molecular structure model molecule form vitamin structural chemical formula view from microscope |
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| navigate by keyword : retinal retinaldehyde polyene chromophore chemical basis visual phototransduction form vitamin molecule molecular structure formula model c20h28o atom chemistry science biochemistry research vision health compound organic eye supplement nutrient aldehyde biomolecule atomic metabolism skeletal biology bond care medicine substance composition drug food carbon disease oxygen study essential hydrogen chain |
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| retinal molecular structure, 3d model molecule, form of vitamin a, structural chemical formula view from a microscope. |
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