:Rhodopin
{{Chembox
| ImageFile =Rhodopin.svg
| ImageSize = 250px
| ImageAlt =
| ImageFile1 =
| ImageSize1 = 300
| ImageAlt1 = Space-filling model
| Name = Rhodopin
| IUPACName = 1,2-Dihydro-ψ,ψ-caroten-1-ol
| SystematicName = (6E,8E,10E,12E,14E,16E,18E,20E,22E,24E,26E)-2,6,10,14,19,23,27,31-Octamethyldotriaconta-6,8,10,12,14,16,18,20,22,24,26,30-dodecaen-2-ol
| OtherNames = 1-Hydroxylycopene; 1-hydroxy-1,2-dihydrolycopene; all-trans-2,6,10,14,19,23,27,31-octamethyldotriaconta-6,8,10,12,14,16,18,20,22,24,26,30-dodecaen-2-ol
|Section1={{Chembox Identifiers
| CASNo=105-92-0
| CASNo_Ref = {{Cascite|changed|CAS}}
| Beilstein = 1730252
| ChemSpiderID = 4517822
| ChEBI = 35331
| KEGG = C19795
| PubChem= 5365880
| UNII = 9EYB433RXU
| InChI = InChI=1S/C40H58O/c1-33(2)19-13-22-36(5)25-16-28-37(6)26-14-23-34(3)20-11-12-21-35(4)24-15-27-38(7)29-17-30-39(8)31-18-32-40(9,10)41/h11-12,14-17,19-21,23-30,41H,13,18,22,31-32H2,1-10H3/b12-11+,23-14+,24-15+,28-16+,29-17+,34-20+,35-21+,36-25+,37-26+,38-27+,39-30+
| InChIKey = CNYVJTJLUKKCGM-RGGGOQHISA-N
| SMILES = OC(C)(C)CCC\C(=C\C=C\C(=C\C=C\C(=C\C=C\C=C(\C=C\C=C(\C=C\C=C(/C)CC\C=C(/C)C)C)C)C)C)C
}}
|Section2={{Chembox Properties
| C=40 | H=58 | O=1
| Appearance=
| Density=0.912 g/cm3
| MeltingPt=
| BoilingPt=
| Solubility=
}}
|Section3={{Chembox Hazards
| MainHazards=
| FlashPt=
| AutoignitionPt =
}}
}}
Rhodopin (1,2-dihydro-ψ,ψ-caroten-1-ol) is a carotenoid. It is a major carotenoid of phototropic bacteria such as Rhodomicrobium vannielii and Rhodopseudomonas acidophila strain 7050.