| Record Information |
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| Version | 2.0 |
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| Created at | 2021-01-05 21:49:19 UTC |
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| Updated at | 2021-07-15 17:11:46 UTC |
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| NP-MRD ID | NP0012442 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | Isosilybin A |
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| Provided By | NPAtlas |
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| Description | Isosilybin A is found in Anastatica hierochuntica and Aspergillus iizukae. Isosilybin A was first documented in 2014 (PMID: 24456525). Based on a literature review very few articles have been published on Isosilybin a (PMID: 34318464) (PMID: 33706132) (PMID: 33251548) (PMID: 32806559) (PMID: 32705114) (PMID: 32284261). |
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| Structure | [H]OC1=C([H])C(O[H])=C2C(O[C@]([H])(C3=C([H])C([H])=C4O[C@]([H])(C5=C([H])C([H])=C(O[H])C(OC([H])([H])[H])=C5[H])[C@]([H])(OC4=C3[H])C([H])([H])O[H])[C@@]([H])(O[H])C2=O)=C1[H] InChI=1S/C25H22O10/c1-32-17-6-11(2-4-14(17)28)24-20(10-26)33-18-7-12(3-5-16(18)34-24)25-23(31)22(30)21-15(29)8-13(27)9-19(21)35-25/h2-9,20,23-29,31H,10H2,1H3/t20-,23+,24-,25-/m1/s1 |
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| Synonyms | | Value | Source |
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| 7-(4-Bromobenzoyl)isosilybin a | MeSH | | Isosilybin b | MeSH |
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| Chemical Formula | C25H22O10 |
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| Average Mass | 482.4410 Da |
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| Monoisotopic Mass | 482.12130 Da |
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| IUPAC Name | (2R,3R)-3,5,7-trihydroxy-2-[(2R,3R)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-3,4-dihydro-2H-1-benzopyran-4-one |
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| Traditional Name | (2R,3R)-3,5,7-trihydroxy-2-[(2R,3R)-2-(4-hydroxy-3-methoxyphenyl)-3-(hydroxymethyl)-2,3-dihydro-1,4-benzodioxin-6-yl]-2,3-dihydro-1-benzopyran-4-one |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=C(O)C=CC(=C1)[C@H]1OC2=C(O[C@@H]1CO)C=C(C=C2)[C@H]1OC2=CC(O)=CC(O)=C2C(=O)[C@@H]1O |
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| InChI Identifier | InChI=1S/C25H22O10/c1-32-17-6-11(2-4-14(17)28)24-20(10-26)33-18-7-12(3-5-16(18)34-24)25-23(31)22(30)21-15(29)8-13(27)9-19(21)35-25/h2-9,20,23-29,31H,10H2,1H3/t20-,23+,24-,25-/m1/s1 |
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| InChI Key | FDQAOULAVFHKBX-HKTJVKLFSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, D2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | |
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| Chemical Taxonomy |
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| Classification | Not classified |
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| Physical Properties |
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| State | Not Available |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Predicted Properties | |
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| General References | - El-Elimat T, Raja HA, Graf TN, Faeth SH, Cech NB, Oberlies NH: Flavonolignans from Aspergillus iizukae, a fungal endophyte of milk thistle (Silybum marianum). J Nat Prod. 2014 Feb 28;77(2):193-9. doi: 10.1021/np400955q. Epub 2014 Jan 23. [PubMed:24456525 ]
- Islam A, Mishra A, Siddiqui MA, Siddiquie S: Recapitulation of Evidence of Phytochemical, Pharmacokinetic and Biomedical Application of Silybin. Drug Res (Stuttg). 2021 Jul 27. doi: 10.1055/a-1528-2721. [PubMed:34318464 ]
- Faisal Z, Mohos V, Fliszar-Nyul E, Valentova K, Kanova K, Lemli B, Kunsagi-Mate S, Poor M: Interaction of silymarin components and their sulfate metabolites with human serum albumin and cytochrome P450 (2C9, 2C19, 2D6, and 3A4) enzymes. Biomed Pharmacother. 2021 Jun;138:111459. doi: 10.1016/j.biopha.2021.111459. Epub 2021 Mar 9. [PubMed:33706132 ]
- Muchiri RN, van Breemen RB: Single Laboratory Validation of UHPLC-MS/MS Assays for Six Milk Thistle Flavonolignans in Human Serum. J AOAC Int. 2021 Mar 5;104(1):232-238. doi: 10.1093/jaoacint/qsaa110. [PubMed:33251548 ]
- Vrba J, Papouskova B, Kosina P, Lnenickova K, Valentova K, Ulrichova J: Identification of Human Sulfotransferases Active towards Silymarin Flavonolignans and Taxifolin. Metabolites. 2020 Aug 12;10(8). pii: metabo10080329. doi: 10.3390/metabo10080329. [PubMed:32806559 ]
- Hasany SM, Huma R, Akram S, Ashraf R, Mushtaq M: Maceration-Mediated Liquid-Liquid Extraction and Reverse-Phase High-Performance Liquid Chromatography-Based Pragmatic Analysis of Silybins. J Chromatogr Sci. 2020 Aug 21;58(8):779-787. doi: 10.1093/chromsci/bmaa035. [PubMed:32705114 ]
- Nasab EM, Athari SM, Ghafarzade S, Nasab AM, Athari SS: Immunomodulatory effects of two silymarin isomers in a Balb/c mouse model of allergic asthma. Allergol Immunopathol (Madr). 2020 Nov - Dec;48(6):646-653. doi: 10.1016/j.aller.2020.01.003. Epub 2020 Apr 10. [PubMed:32284261 ]
- Vrba J, Papouskova B, Lnenickova K, Kosina P, Kren V, Ulrichova J: Identification of UDP-glucuronosyltransferases involved in the metabolism of silymarin flavonolignans. J Pharm Biomed Anal. 2020 Jan 30;178:112972. doi: 10.1016/j.jpba.2019.112972. Epub 2019 Nov 4. [PubMed:31727359 ]
- Kim JY, Kim JY, Jenis J, Li ZP, Ban YJ, Baiseitova A, Park KH: Tyrosinase inhibitory study of flavonolignans from the seeds of Silybum marianum (Milk thistle). Bioorg Med Chem. 2019 Jun 15;27(12):2499-2507. doi: 10.1016/j.bmc.2019.03.013. Epub 2019 Mar 7. [PubMed:30871862 ]
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