Retinaldehyde

A carotenoid constituent of visual pigments. It is the oxidized form of retinol which functions as the active component of the visual cycle. It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration.

Also Known As:

Retinal; Retinene; Vitamin A Aldehyde; 11-cis-Retinal; 11 cis Retinal; Aldehyde, Vitamin A; Axerophthal

Organic Chemicals: 58
- Aldehydes: 488
  - Retinaldehyde: 27699
- Hydrocarbons: 412
  - Terpenes: 260
    - Carotenoids: 1934
      - Retinoids: 2618
        Retinaldehyde: 27699
  - Cyclic Hydrocarbons: 3
    - Alicyclic Hydrocarbons: 1
      - Cycloparaffins: 5
        Cyclohexanes: 2
        Cyclohexenes
        Carotenoids: 1934
        Retinoids: 2618
        Retinaldehyde: 27699
  - Acyclic Hydrocarbons
    - Alkenes: 45
      - Polyenes: 90
        Carotenoids: 1934
        Retinoids: 2618
        Retinaldehyde: 27699
Biological Factors: 1315
- Biological Pigments
  - Carotenoids: 1934
    - Retinoids: 2618
      - Retinaldehyde: 27699

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