SHEET /m/11-cis-retinal · PubChem CID 5280490 · CAS 564-87-4 · REV 2026.07
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11-cis retinal
from sourceC20H28O · 284.4 g/mol
retinaldehyde · cis-Retinal · Neoretinene b
What is 11-cis retinal?
The bent form of vitamin A that sits in your eye waiting for light. A photon straightens it, and that single motion is the start of vision. from source
CategoryBody
Chemical familyAldehydes
LeaderboardsBiggest
Fig. 1 · 2D structure RDKit
SMILES
CC1=C(C(CCC1)(C)C)/C=C/C(=C/C=C\C(=C\C=O)\C)/CWhere you'll find it
Your own body makes this one. It is not an ingredient you buy. See the rest of the body group.
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Where 11-cis retinal leads
Relatedcomputed
Retinal100% similarBoth carry an aldehyde group.β-Carotene84% similarIsotretinoin77% similarNo functional group in common: Isotretinoin carries a carboxylic acid group, while 11-cis retinal carries an aldehyde group.Tretinoin77% similarNo functional group in common: Tretinoin carries a carboxylic acid group, while 11-cis retinal carries an aldehyde group.Retinol73% similarNo functional group in common: Retinol carries an alcohol group, while 11-cis retinal carries an aldehyde group.β-Ionone61% similarNo functional group in common: β-Ionone carries a ketone group, while 11-cis retinal carries an aldehyde group.