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Retinal

Retinal

Vitamin A aldehyde, a polyene chromophore.

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 2,109 clicks on its links

  1. Purple Earth hypothesis

    Astrobiological hypothesis regarding early photosynthetic organisms.

    27%

  2. Retinol

    Chemical compound.

    15%

  3. Opsin

    Class of light-sensitive proteins.

    6.1%

  4. Chromophore

    Part of a molecule responsible for its color.

    5.9%

  5. Vitamin A

    Essential nutrient.

    5.4%

  6. Chlorophyll

    Green pigments found in plants, algae and bacteria.

    4.2%

  7. Retinoic acid

    Metabolite of vitamin A.

    4%

  8. Β-Carotene

    Red-orange pigment of the terpenoids class.

    3.9%

  9. Retina

    Part of the eye.

    3.2%

  10. Visual perception

    Ability to interpret the surrounding environment using light in the visible spectrum.

    2.4%

Readers come from

Share of the 3,535 readers arriving from another article

  1. Purple Earth hypothesis

    Astrobiological hypothesis regarding early photosynthetic organisms.

    22%

  2. Retinol

    Chemical compound.

    14%

  3. Great Oxidation Event

    Paleoproterozoic surge in atmospheric oxygen.

    8.8%

  4. Hypothetical types of biochemistry

    Possible alternative biochemicals used by life forms.

    8.1%

  5. Opsin

    Class of light-sensitive proteins.

    7.1%

  6. Aldehyde

    Organic compound containing the functional group R–CH=O.

    3.8%

  7. Rhodopsin

    Light-sensitive receptor protein.

    3.7%

  8. Retinoid

    Group of tetraterpenes.

    3.5%

  9. Huronian glaciation

    Severe glaciation during the Paleoproterozoic era.

    2%

  10. Vitamin A

    Essential nutrient.

    1.7%