retinal molecule structural chemical formula ball and stick model isolated image vitamin |
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| navigate by keyword : retinal retinaldehyde polyene chromophore chemical basis visual phototransduction form vitamin molecule molecular structure formula isolated 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 structural ball stick image |
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| retinal molecule, structural chemical formula, ball-and-stick model, isolated image vitamin a. |
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