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Carotenoid

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IdImageCOMMON NAMENAMEDATA No Lipid classINFORMANTSYMBOLFORMULAMOL.WT(average)Download cdx file / Mol format file BIOOGICAL ACTIVITY PHYSICAL AND CHEMICAL PROPERTIES SPECTRAL DATA CHROMATOGRAM DATA SOURCE CHEMICAL SYNTHESIS METABOLISM GENETIC INFORMATION NOTE REFERENCES
MELTING POINTBOILING POINTDENSITYREFRACTIVE INDEXOPTICAL ROTATIONSOLUBILITY UV SPECTRAIR SPECTRANMR SPECTRAMASS SPECTRAOTHER SPECTRA
11,2-Dihydroneurosporene 1,2,7,8-Tetrahydro-y,y-carotene VCA1136CarotenoidShinichi Takaichi C40H60 540.904Download ChemDraw structure dataRps. viridis reaction center contains one 15-cis 1,2-dihydroneurosporene, better than the original model with 13-cis form << Ref. 1263>>. lmax (nm): light petroleum 414, 439, 468 << Ref. 1261/1262>>; acetonitrile/methanol/THF (58:35:7) 267, 331, 417, 441, 470, %III/II=89 [Spectrum 1023] << Ref. 1057>> 1H-NMR 0.88, J=6 << Ref. 1261>> AEI-MS m/z=540 << Ref. 1261/1262>> HPLC (column; Novapak C18 (Waters) 8 X 100 mm: eluelnt; acetonitrile/methanol/THF 58:35:7: flow 2.0 ml/min) Rt=15.3 min << Ref. 1057>> Rhodopseudomonas viridis (present name, Blastochloris viridis) (photosynthetic bacterium) << Ref. 1261/1262>> Composition is neurosporene (3%), 1,2-dihydroneurosporene (72%), lycopene (1%), 1,2-dihydrolycopene (17%), 1,2-dihydro-3,4-dehydrolycopene (5%) and others (2%) in Rps. viridis << Ref. 1262>>. << Ref.1057 >> AUTHOR: Takaichi, S. TITLE: Characterization of carotenes in a combination of a C18 HPLC column with isocratic elution and absorption spectra with a photodiode-array detector JOURNAL: Photosynth. Res. VOLUME: 65 PAGE: 93 -99 (2000)
<< Ref.1261 >> AUTHOR: Malhotra, H.C., Britton, G., Goodwin, T.W. TITLE: Occurrence of 1,2-dihydro-carotenoids in Rhodopseudomonas viridis JOURNAL: Chem. Comun. VOLUME: PAGE: 127 -128 (1970)
<< Ref.1262 >> AUTHOR: Malhotra, H. C., Britton, G., and Goodwin, T. W. TITLE: A novel series of 1,2-dihydro carotenoids PubMed ID:5450993 JOURNAL: Int Z Vitaminforsch. VOLUME: 40 PAGE: 315-322(1970)
<< Ref.1263 >> AUTHOR: Lancaster, C. R., and Michel, H. TITLE: Refined crystal structures of reaction centres from Rhodopseudomonas viridis in complexes with the herbicide atrazine and two chiral atrazine derivatives also lead to a new model of the bound carotenoid PubMed ID:10024457 JOURNAL: J Mol Biol. VOLUME: 286 PAGE: 883-898(1999)
2OH-Demethylspheroidenone/ Hydroxydemethylspheroidenone 1,1'-Dihydroxy-3,4-didehydro-1,2,1',2',7',8'-hexahydro-y,y-caroten-2-one VCA1135CarotenoidShinichi TakaichiOH-DMSO C40H58O3 586.887Download ChemDraw structure data FD-MS m/z=586 << Ref. 1260>> The crtF mutant of Rubrivivax gelatinosus (photosynthetic bacteria) produces this carotenoid << Ref. 1260>>. << Ref.1260 >> AUTHOR: Pinta, V., Ouchane, S., Picaud, M., Takaichi, S., Astier, C., and Reiss-Husson, F. TITLE: Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA PubMed ID:12664193 JOURNAL: Arch Microbiol. VOLUME: 179 PAGE: 354-362(2003)
3Ketotetradehydrolycopene/ 1,1'-(OH)2-2-keto-3,4,3',4'-tetradehydrolycopene 1,1'-Dihydroxy-3,4,3',4'-tetradehydro-1,2,1',2'-tetrahydro-y,y-caroten-2-one VCA1134CarotenoidShinichi Takaichi C40H54O3 582.855Download ChemDraw structure data FD-MS m/z=582 << Ref. 1260>> The crtF mutant of Rubrivivax gelatinosus (photosynthetic bacteria) produces this carotenoid << Ref. 1260>>. << Ref.1260 >> AUTHOR: Pinta, V., Ouchane, S., Picaud, M., Takaichi, S., Astier, C., and Reiss-Husson, F. TITLE: Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA PubMed ID:12664193 JOURNAL: Arch Microbiol. VOLUME: 179 PAGE: 354-362(2003)
4Phillipsiaxanthin/ 1,1'-(OH)2-2,2'-diketo-3,4,3',4'-tetradehydrolycopene 1,1'-Dihydroxy-3,4,3',4'-tetradehydro-1,2,1',2'-tetrahydro-y,y-carotene-2,2'-dione VCA1133CarotenoidShinichi Takaichi C40H52O4 596.838Download ChemDraw structure data FD-MS m/z=596 << Ref. 1260>> The crtF mutant of Rubrivivax gelatinosus (photosynthetic bacteria) produces this carotenoid << Ref. 1260>>. << Ref.1260 >> AUTHOR: Pinta, V., Ouchane, S., Picaud, M., Takaichi, S., Astier, C., and Reiss-Husson, F. TITLE: Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA PubMed ID:12664193 JOURNAL: Arch Microbiol. VOLUME: 179 PAGE: 354-362(2003)
5Astaxanthin ester/ Astaxanthin monoester/ Astaxanthin diester 3,3'-Dihydroxy-b,b-carotene-4,4'-dione monoester and diester VCA1132CarotenoidShinichi Takaichi 0.000Download ChemDraw structure data FD-MS 778 (C12:0), 806 (C14:0), 832 (C16:1), 834 (C16:0), 860 (C18:1); FAB-MS, SI-MS << Ref. 1256>> Euphausia superba (Antarctic krill) << Ref. 1256>> Euphausia, Thysanoessa, Calanus, Acanthephyra and Cancer (Crustaceans) << Ref. 1257>> Composition of astaxanthin, its monoester and its diester in krill are 20%, 34% and 46% << Ref. 1256>>, and 7-8%, 25-27% and 62-64% << Ref. 0422>>. Those in Euphausia, Thysanoessa, Calanus, Acanthephyra and Cancer (Crustaceans) are also reported << Ref. 1257>>.
Only five kinds of fatty acids are found in astaxanthin monoester and diester in krill: C12:0 (17%), C14:0 (20%), C16:0 (29%), C16:1 (9%) and C18:1 (25%) in monoester << Ref. 1256>>.
Almost the same stereochemical composition in astaxanthin, its monoester and its diester in keill are found: 62-71% (3R,3'R)-, 11-14% (3R,3'S; meso)- and 17-26% (3S,3'S)-astaxanthin << Ref. 0422>>.
<< Ref.0422 >> AUTHOR: Maoka,T.,Katsuyama,M.,Kaneko,N., and Matsuno,T. TITLE: Stereochemical investigation of the carotenoids in the antarctic krill Euphausia superba JOURNAL: Bull. Jap. Soc. Sci. Fish. VOLUME: 51 PAGE: 1671 -1673 (1985)
<< Ref.1256 >> AUTHOR: Takaichi, S., Matsui, K., Nakamura, M., Muramatsu, M., and Hanada, S. TITLE: Fatty acids of astaxanthin esters in krill determined by mild mass spectrometry PubMed ID:14529757 JOURNAL: Comp Biochem Physiol B Biochem Mol Biol. VOLUME: 136 PAGE: 317-322(2003)
<< Ref.1257 >> AUTHOR: Foss, P., Renstrøn, B., Liaaen-Jensen, S. TITLE: Natural occurrence of enantiomeric and meso astasanthin: 7. Crustaceans including zooplankton JOURNAL: Comp. Biochem. Physiol. B VOLUME: 86 PAGE: 313 -314 (1987)
6OH-Demethylspheroidene/ Hydroxydemethylspheroidene 3,4-Didehydro-1,2,1',2',7',8'-hexahydro-y,y-carotene-1,1'-diol VCA1131CarotenoidShinichi TakaichiOH-DMS C40H60O2 572.903Download ChemDraw structure data lmax (nm): HPLC eluent 430, 455, 485 << Ref. 1255>> FD-MS m/z=572 << Ref. 1260>> Demethylspheroidene is changed to OH-demethylshperoidene by CrtC from Rvi. gelatinosus, not by that from Rba. capusulatus << Ref. 1255>>. The crtA and crtF mutant of Rubrivivax gelatinosus (photosynthetic bacteria) produces this carotenoid << Ref. 1260>>. << Ref.1255 >> AUTHOR: Steiger, S., Mazet, A., and Sandmann, G. TITLE: Heterologous expression, purification, and enzymatic characterization of the acyclic carotenoid 1,2-hydratase from Rubrivivax gelatinosus PubMed ID:12745254 JOURNAL: Arch Biochem Biophys. VOLUME: 414 PAGE: 51-58(2003)
<< Ref.1260 >> AUTHOR: Pinta, V., Ouchane, S., Picaud, M., Takaichi, S., Astier, C., and Reiss-Husson, F. TITLE: Characterization of unusual hydroxy- and ketocarotenoids in Rubrivivax gelatinosus: involvement of enzyme CrtF or CrtA PubMed ID:12664193 JOURNAL: Arch Microbiol. VOLUME: 179 PAGE: 354-362(2003)
7Dihydroxyneurosporene/ OH-Chloroxanthin 1,2,7,8,1',2'-Hexahydro-y,y-carotene-1,1'-diol VCA1130CarotenoidShinichi Takaichi C40H62O2 574.919Download ChemDraw structure data lmax (nm): HPLC eluent 415, 440, 470 << Ref. 1255>> Chloroxanthin is changed to dihydroxyneurosporene by CrtC from Rvi. gelatinosus, not by that from Rba. capusulatus << Ref. 1255>>. << Ref.1255 >> AUTHOR: Steiger, S., Mazet, A., and Sandmann, G. TITLE: Heterologous expression, purification, and enzymatic characterization of the acyclic carotenoid 1,2-hydratase from Rubrivivax gelatinosus PubMed ID:12745254 JOURNAL: Arch Biochem Biophys. VOLUME: 414 PAGE: 51-58(2003)
8Methyl bixin/ (Bixin dimethyl ester) Dimethyl 6,6'-diapocarotene-6,6'-dioate VCA1129CarotenoidShinichi Takaichi C26H32O4 408.530Download ChemDraw structure data
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FD-MS m/z=408 << Ref. 1053>> Seeds of Bixa orellana (plant) << Ref. 1254>>. Norbixin is methylated to bixin and methyl bixin by norbixin methyltransferase (BonBMT) with S-adenosylmethionine in Bixa orellana seeds (plant) << Ref. 1254>>. [Table 1038] << Ref.1053 >> AUTHOR: Takaichi, S. TITLE: Usefulness of field desorption mass spectrometry in determining molecular masses of carotenoids, natural carotenoid derivatives and their chemical derivatives JOURNAL: Org. Mass Spectrom. VOLUME: 28 PAGE: 785 -788 (1993)
<< Ref.1254 >> AUTHOR: Bouvier, F., Dogbo, O., and Camara, B. TITLE: Biosynthesis of the food and cosmetic plant pigment bixin (annatto) PubMed ID:12829782 JOURNAL: Science. VOLUME: 300 PAGE: 2089-2091(2003)
9Bixin 6-Methyl hydrogen 6,6'-diapocarotene-6,6'-dioate VCA1128CarotenoidShinichi Takaichi C25H30O4 394.503Download ChemDraw structure data
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[Spectrum 1153] FD-MS m/z=394 << Ref. 1053>> Seeds of Bixa orellana (plant) << Ref. 1254>>. Norbixin is methylated to bixin and methyl bixin by norbixin methyltransferase (BonBMT) with S-adenosylmethionine in Bixa orellana seeds (plant) << Ref. 1254>>. [Table 1037] Bixin, also known as annatto, is a seed-specific pigment widely used in foods and cosmetics since pre-Columbian times. Natural bixin is 9'-cis form. << Ref.1053 >> AUTHOR: Takaichi, S. TITLE: Usefulness of field desorption mass spectrometry in determining molecular masses of carotenoids, natural carotenoid derivatives and their chemical derivatives JOURNAL: Org. Mass Spectrom. VOLUME: 28 PAGE: 785 -788 (1993)
<< Ref.1254 >> AUTHOR: Bouvier, F., Dogbo, O., and Camara, B. TITLE: Biosynthesis of the food and cosmetic plant pigment bixin (annatto) PubMed ID:12829782 JOURNAL: Science. VOLUME: 300 PAGE: 2089-2091(2003)
10Norbixin 6,6'-Diapocarotene-6,6'-dioic acid VCA1127CarotenoidShinichi Takaichi C24H28O4 380.477Download ChemDraw structure data Seeds of Bixa orellana (plant) << Ref. 1254>>. Bixindial is oxidized to norbixin by bixin aldehyde dehydrogenase (BoBADH) with NAD, and norbixin is methylated to bixin and methyl bixin by norbixin methyltransferase (BonBMT) with S-adenosylmethionine in Bixa orellana seeds (plant) << Ref. 1254>>. [Table 1036] << Ref.1254 >> AUTHOR: Bouvier, F., Dogbo, O., and Camara, B. TITLE: Biosynthesis of the food and cosmetic plant pigment bixin (annatto) PubMed ID:12829782 JOURNAL: Science. VOLUME: 300 PAGE: 2089-2091(2003)
11Bixindial/ Bixin aldehyde 6,6'-Diapocarotene-6,6'-dial VCA1126CarotenoidShinichi Takaichi C24H28O2 348.478Download ChemDraw structure data Seeds of Bixa orellana (plant) << Ref. 1254>>. Lycopene is cleavaged to bixindial by lycopene cleavage dioxygenase (BoLCD), and bixindial is oxidized to norbixin by bixin aldehyde dehydrogenase (BoBADH) with NAD in Bixa orellana seeds (plant) << Ref. 1254>>. [Table 1035] << Ref.1254 >> AUTHOR: Bouvier, F., Dogbo, O., and Camara, B. TITLE: Biosynthesis of the food and cosmetic plant pigment bixin (annatto) PubMed ID:12829782 JOURNAL: Science. VOLUME: 300 PAGE: 2089-2091(2003)
12Neurosporaxanthin b-D-glucopyranoside 4'-Apo-b-caroten-4'-oic acid b-D-glucopyranoside VCA1125CarotenoidShinichi Takaichi C41H56O7 660.879Download ChemDraw structure data lmax (nm): diethylether 475 << Ref. 1253>> 1H-NMR in CDCl3/CD3OD (4:1) << Ref. 1253>> FAB-MS, HR-FAB-MS << Ref. 1253>> Fusarium strain T-1 (fungus) << Ref. 1253>>. << Ref.1253 >> AUTHOR: Sakaki, H., Kaneno, H., Sumiya, Y., Tsushima, M., Miki, W., Kishimoto, N., Fujita, T., Matsumoto, S., Komemushi, S., and Sawabe, A. TITLE: A new carotenoid glycosyl ester isolated from a marine microorganism, Fusarium strain T-1 PubMed ID:12444702 JOURNAL: J Nat Prod. VOLUME: 65 PAGE: 1683-1684(2002)
13Neurosporaxanthin 4'-Apo-b,y-caroten-4'-oic acid VCA1124CarotenoidShinichi Takaichi C35H46O2 498.739Download ChemDraw structure data lmax (nm): diethylether 475 << Ref. 1253>> 1H- and 13C-NMR in CDCl3 << Ref. 1253>> EI-MS, HR-EI-MS << Ref. 1253>> << Ref. 0059>> Neurospora crassa << Ref. 1176>>, Fusarium fujikuroi (previous name, Gibberella fujikuroi) << Ref. 1175>>, and Fusarium strain T-1 << Ref. 1253>> (fungus). << Ref.0059 >> AUTHOR: Enzell,C.R.,Francis,G.W., and Liaaen-Jensen,S. TITLE: Mass Spectrometric Studies of Carotenoids 2. A Survey of Fragmentation Reactions JOURNAL: Acta Chim. Scand. VOLUME: 23 PAGE: 727 -750 (1969)
<< Ref.1175 >> AUTHOR: Linnemannstons, P., Prado, M. M., Fernandez-Martin, R., Tudzynski, B., and Avalos, J. TITLE: A carotenoid biosynthesis gene cluster in Fusarium fujikuroi: the genes carB and carRA PubMed ID:12172798 JOURNAL: Mol Genet Genomics. VOLUME: 267 PAGE: 593-602(2002)
<< Ref.1176 >> AUTHOR: Arrach, N., Schmidhauser, T. J., and Avalos, J. TITLE: Mutants of the carotene cyclase domain of al-2 from Neurospora crassa PubMed ID:11862485 JOURNAL: Mol Genet Genomics. VOLUME: 266 PAGE: 914-921(2002)
<< Ref.1253 >> AUTHOR: Sakaki, H., Kaneno, H., Sumiya, Y., Tsushima, M., Miki, W., Kishimoto, N., Fujita, T., Matsumoto, S., Komemushi, S., and Sawabe, A. TITLE: A new carotenoid glycosyl ester isolated from a marine microorganism, Fusarium strain T-1 PubMed ID:12444702 JOURNAL: J Nat Prod. VOLUME: 65 PAGE: 1683-1684(2002)
146'-Hydroxysiphonaxanthin ester/ 6'-OH-siphonaxanthin/ 6'-Hydroxysiphonaxanthin dodecenoate (3R,3'R,6'?)-19-(trans-Dodec-2-enoyloxy)-3,3',6'-trihydroxy-7,8-dihydro-b,e-caroten-8-one VCA1123CarotenoidShinichi TakaichiOH-Sx-FA C52H76O6 797.156Download ChemDraw structure data6'-Hydroxysiphonaxanthin ester and siphonaxanthin ester have function as antenna pigments in Pterosperma << Ref. 1249>>. lmax (nm): acetone 449, (466); methanol 452, (465); heptane 452, (478); CHCl3 463 << Ref. 1248>>; methanol 455 and its reduced form 402, 425, 451, %III/II=93 << Ref. 1249>> 1H-NMR in CDCl3 << Ref. 1248>> 1H- and 13C-NMR in CDCl3 << Ref. 1249>> EI-MS << Ref. 1248>>; FD-MS 824 for C14:1 << Ref. 1249>> HPLC of Pterosperma cristatum << Ref. 1249>>, and Nephroselmis astigmatica, N. phriformis and Nephroselmis sp. MBIC 11158 << Ref. 1352>> (Prasinophyceae, Chlorophyta). Pyramimonas << Ref. 1248>>, Pterosperma << Ref. 1249>>, Nephroselmis << Ref. 1352>> (Prasinophyceae). Identical with xanthophyll K2.
Pyraminonas amylifera has 2-trans-dodecenoate and 2-trans-decenoate as esterified fatty acids << Ref. 1248>>. Pterosperma cristatum has 2-trans-tetradecenoate as esterified fatty acid << Ref. 1249>>.
Nephroselmis astigmatica, N. phriformis and Nephroselmis sp. MBIC 11158 have OH-Sx-C12:1 and C14:1 esters << Ref. 1352>>
<< Ref.1248 >> AUTHOR: Egeland, E.S., Guilard, B.R.L., Liaaaen-Jensen, S. TITLE: Algal carotenoids 63: Carotenoids from Prasinophyceae 7: Additional carotenoid prototype representatives and a general chmosystematic evaluation of carotenoids in Prasionphyceae (Chlorophyta) JOURNAL: Phytochemistry VOLUME: 44 PAGE: 1087 -1097 (1997)
<< Ref.1249 >> AUTHOR: Yoshii, Y., Takaichi, S., Maoka, T., Hanada, S., Inouye, I. TITLE: Characterization of two unique carotenoid fatty acid esters from Pterosperma cristatum (Prasinophyceae, Chlorophyta) JOURNAL: J. Phycol. VOLUME: 38 PAGE: 397 -303 (2002)
<< Ref.1352 >> AUTHOR: Yoshii, Y., Takaichi, S., Maoka, T., Suda, S., Sekiguchi, H., Nakayama, T., Inouye, I. TITLE: Variation of siphonaxanthin series among the genus Nephroselmis (Prasinophyceae, Chlorophyta), including a novel primary methoxy carotenoid JOURNAL: J. Phycol. VOLUME: 41 PAGE: 827 -834 (2005)
156'-Hydroxysiphonaxanthin/ 6'-OH-Siphonaxanthin (3R,3'R,6'?)-3,19,3',6'-Tetrahydroxy-7,8-dihydro-b,e-caroten-8-one VCA1122CarotenoidShinichi TakaichiOH-Sx C40H56O5 616.870Download ChemDraw structure data lmax (nm): acetone 442, (463); CHCl3 461 << Ref. 1248>> 1H-NMR in CDCl3 << Ref. 1248>> EI-MS << Ref. 1248>> Pyramimonas (Pracenophyceae) << Ref. 1248>> Identical with xanthophyll K2S. << Ref.1248 >> AUTHOR: Egeland, E.S., Guilard, B.R.L., Liaaaen-Jensen, S. TITLE: Algal carotenoids 63: Carotenoids from Prasinophyceae 7: Additional carotenoid prototype representatives and a general chmosystematic evaluation of carotenoids in Prasionphyceae (Chlorophyta) JOURNAL: Phytochemistry VOLUME: 44 PAGE: 1087 -1097 (1997)
16Uriolide (3S,5R,6S,3'R,6'R)-5,6-Epoxy-3,3'-dihydroxy-5,6,7',8'-tetrahydro-b,e-caroten-19',11'-olide VCA1121CarotenoidShinichi Takaichi C40H54O5 614.854Download ChemDraw structure data lmax (nm): acetone 448, 472, %III/II=11; methanol 448, 470, %III/II=2; hexane (427), 448, 478, %III/II=38 << Ref. 1244>>; CHCl3 (433), 462, 483, %III/II=1 << Ref. 1247>> 1H-NMR in CDCl3 << Ref. 1244>> << Ref. 0513/1244/1247>> Cd in EPA << Ref. 1244>> Clone 266 G (Prasinophyceae) << Ref. 1244>> Bathycoccus (Prasinophyceae) << Ref. 1247>> Micromonas, Mantoniella and Pseudoscourfieldia (Prasinophyceae) << Ref. 0513>> Prasinococcus (Prasinophyceae) << Ref. 1248>> << Ref.0513 >> AUTHOR: Egeland,E.S., Eikrem,W., Throndsen,J., Wilhelm,C., Zapata,M., Liaaen-Jensen,S. TITLE: Algal carotenoids 61: Carotenoids from Prasinophyceae 6: Carotenpids from Further Prasinophytes (Erratum 24: 179-180 (1996)) JOURNAL: Biochem. Syst. Ecol. VOLUME: 23 PAGE: 747 -755 (1995)
<< Ref.1244 >> AUTHOR: Foss, P., Guillard, R.R.L., Liaaen-Jensen, S. TITLE: Algal carotenoids 34: Carotenoids from Prasinophyceae 2: Carotenoids from eucaryotic ultraplankton clones (Prasinophyceae) JOURNAL: Phytochemistry VOLUME: 25 PAGE: 119 -124 (1986)
<< Ref.1247 >> AUTHOR: Egeland, E.S., Johnsen, G., Eikrem, W., Throndsen, J., Liaaen-Jensen, S. TITLE: Algal carotenoids 60: Carotenoids from Prasinophyceae 5: Pigments of Bathycoccus prasinos (Prasinophyceae): methodological and chemosystematic implications JOURNAL: J. Phycol. VOLUME: 31 PAGE: 554 -561 (1995)
<< Ref.1248 >> AUTHOR: Egeland, E.S., Guilard, B.R.L., Liaaaen-Jensen, S. TITLE: Algal carotenoids 63: Carotenoids from Prasinophyceae 7: Additional carotenoid prototype representatives and a general chmosystematic evaluation of carotenoids in Prasionphyceae (Chlorophyta) JOURNAL: Phytochemistry VOLUME: 44 PAGE: 1087 -1097 (1997)
17Micromonal (3R,3'R,6'R)-3,3'-Dihydroxy-7',8'-dihydro-b,e-caroten-19'-al VCA1120CarotenoidShinichi Takaichi C40H56O3 584.871Download ChemDraw structure data lmax (nm): acetone (423), 449, (472); diethylether (422), 447, (470); hexane (425), 449, (474); CHCl3 462, (483) << Ref. 1246/1247>> 1H-NMR in CDCl3 << Ref. 1246>> EI-MS << Ref. 0513/1246/1247>>