Vitamin A aldehyde
PubChem Notes:
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.
Retinal - definition from Biology-Online.org
[1. (Science: anatomy) Pertaining to the retina. 2. (Science: biochemistry) The aldehyde of retinol, derived by the oxidative enzymatic splitting of absorbed dietary carotene and having vitamin A activity. In the retina, retinal combines with opsins to form visual pigments. One isomer, 11 cis retinal combines with opsin in the rods (scotopsin) to form rhodopsin or visual purple. Another, all trans retinal (trans r.), visual yellow, xanthopsin) results from the bleaching of rhodopsin by light, in which the 11 cis form is converted to the all trans form. Retinal also combines with opsins in the cones (photopsins) to form the three pigments responsible for colour vision.
MediLexicon all-trans-retinal - Medical Dictionary Definition for Term 'all-trans-retinal'
[1. The orange retinaldehyde resulting from the action of light on the rhodopsin of the retina, which converts the 11-cis-retinal component of the rhodopsin to all-trans-retinal plus opsin.
Molecular Formula:
C20H28O
InChI: InChI=1/C20H28O/c1-16(8-6-9-17(2)13-15-21)11-12-19-18(3)10-7-14-20(19,4)5/h6,8-9,11-13,15H,7,10,14H2,1-5H3/b9-6+,12-11+,16-8+,17-13+
InChIKey: InChIKey=NCYCYZXNIZJOKI-OVSJKPMPBO
SMILES: [H]C(=O)\C=C(C)\C=C\C=C(C)\C=C\C1=C(C)CCCC1(C)C
Names:
all-trans-Retinal
all-trans-retinal
all-trans-Retinal
all-trans-Retinene
all-trans-retinene
all-trans-Retinene
all-trans-Vitamin A aldehyde
all-trans-vitamin A aldehyde
all-trans-Vitamin A aldehyde
retinal
Retinal
retinal
Retinal
retinal
Retinene
Vitamin A aldehyde
(2E,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethyl-1-cyclohexenyl)nona-2,4,6,8-tetraenal
116-31-4
Registries:
PubChem CID 638015
ChEBI 17898
Kegg C00376
PubChem ID 11076688
PubChem ID 3666
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