| Record Information |
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| Version | 2.0 |
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| Created at | 2022-02-14 20:56:54 UTC |
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| Updated at | 2025-10-01 01:00:54 UTC |
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| NP-MRD ID | NP0044447 |
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| Natural Product DOI | https://doi.org/10.57994/1338 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | Isoliquiritigenin |
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| Description | Isoliquiritigenin, also known as 6'-deoxychalcone or GU 17, belongs to the class of organic compounds known as 2'-hydroxychalcones. These are organic compounds containing chalcone skeleton that carries a hydroxyl group at the 2'-position. Thus, isoliquiritigenin is considered to be a flavonoid lipid molecule. Isoliquiritigenin is a very hydrophobic molecule, practically insoluble (in water), and relatively neutral. Isoliquiritigenin is a bitter tasting compound. Outside of the human body, Isoliquiritigenin has been detected, but not quantified in, several different foods, such as java plums, tea leaf willows, sweet marjorams, common grapes, and black mulberries. This could make isoliquiritigenin a potential biomarker for the consumption of these foods. Isoliquiritigenin is a phenolic chemical compound found in licorice. Isoliquiritigenin has been found to be a potent (65 times higher affinity than diazepam) GABA-A benzodiapine receptor positive allosteric modulator. The enzyme 6'-deoxychalcone synthase uses malonyl-CoA, 4-coumaroyl-CoA, NADPH, and H+ to produce CoA, isoliquiritigenin, CO2, NADP+, and H2O.The enzyme isoliquiritigenin 2'-O-methyltransferase further transforms isoliquiritigenin into 2'-O-methylisoliquiritigenin. It can target miR-301b/LRIG1 signaling pathways, resulting in the inhibition of melanoma growth in vitro. Isoliquiritigenin is expected to be in Cannabis as all living plants are known to produce and metabolize it. |
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| Structure | [H]\C(=C(\[H])C1=CC=C(O)C=C1)C(=O)C1=C(O)C=C(O)C=C1 InChI=1S/C15H12O4/c16-11-4-1-10(2-5-11)3-8-14(18)13-7-6-12(17)9-15(13)19/h1-9,16-17,19H/b8-3+ |
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| Synonyms | | Value | Source |
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| (e)-1-(2,4-Dihydroxy-phenyl)-3-(4-hydroxy-phenyl)-propenone | ChEBI | | (e)-1-(2,4-Dihydroxyphenyl)-3-(4-hydroxyphenyl)-2-propene-1-one | ChEBI | | 2',4,4'-Trihydroxychalcone | ChEBI | | 4,2',4'-Trihydroxychalcone | ChEBI | | trans-2',4,4'-Trihydroxychalcone | ChEBI | | 1-(2,4-Dihydroxyphenyl)-3-(4-hydroxyphenyl)-2-propen-1-one | HMDB | | 1-(2,4-Dihydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one | HMDB | | 2',4',4-Trihydroxychalcone | HMDB | | 2',4'-Dihydroxy-3-(p-hydroxyphenyl)-acrylophenone | HMDB | | 2',4,4'-Trihydroxy-chalcone | HMDB | | 42'4'-Trihydroxychalcone | HMDB | | 6'-Deoxychalcone | HMDB | | GU 17 | HMDB | | GU-17 | HMDB |
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| Chemical Formula | C15H12O4 |
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| Average Mass | 256.2534 Da |
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| Monoisotopic Mass | 256.07356 Da |
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| IUPAC Name | (2E)-1-(2,4-dihydroxyphenyl)-3-(4-hydroxyphenyl)prop-2-en-1-one |
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| Traditional Name | isoliquiritigenin |
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| CAS Registry Number | 961-29-5 |
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| SMILES | [H]\C(=C(\[H])C1=CC=C(O)C=C1)C(=O)C1=C(O)C=C(O)C=C1 |
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| InChI Identifier | InChI=1S/C15H12O4/c16-11-4-1-10(2-5-11)3-8-14(18)13-7-6-12(17)9-15(13)19/h1-9,16-17,19H/b8-3+ |
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| InChI Key | DXDRHHKMWQZJHT-FPYGCLRLSA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| NOESY NMR | [1H, 1H] NMR Spectrum (2D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | COSY NMR | [1H, 1H] NMR Spectrum (2D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | HSQC NMR | [1H, 13C] NMR Spectrum (2D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | HMBC NMR | [1H, 13C] NMR Spectrum (2D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | TOCSY NMR | [1H, 1H] NMR Spectrum (2D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, CD3OD, experimental) | mate.erdelyi@kemi.uu.se | Uppsala University | Mate Erdelyi | 2025-09-30 | View Spectrum | | HSQC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum | | HMBC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum | | COSY NMR | [1H, 1H] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum |
| | 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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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 600.133705802, CD3OD, simulated) | bgnzk@missouri.edu | Sumner Lab, MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-03 | View Spectrum |
| | Species |
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| Species of Origin | |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as 2'-hydroxychalcones. These are organic compounds containing chalcone skeleton that carries a hydroxyl group at the 2'-position. |
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| Kingdom | Organic compounds |
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| Super Class | Phenylpropanoids and polyketides |
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| Class | Linear 1,3-diarylpropanoids |
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| Sub Class | Chalcones and dihydrochalcones |
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| Direct Parent | 2'-Hydroxychalcones |
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| Alternative Parents | |
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| Substituents | - 2'-hydroxychalcone
- Cinnamylphenol
- Hydroxycinnamic acid or derivatives
- Benzoyl
- Resorcinol
- Styrene
- Aryl ketone
- Phenol
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Monocyclic benzene moiety
- Benzenoid
- Vinylogous acid
- Acryloyl-group
- Enone
- Alpha,beta-unsaturated ketone
- Ketone
- Hydrocarbon derivative
- Organooxygen compound
- Organic oxide
- Organic oxygen compound
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic compounds |
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| External Descriptors | |
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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 | - de Barros Machado T, Leal IC, Kuster RM, Amaral AC, Kokis V, de Silva MG, dos Santos KR: Brazilian phytopharmaceuticals--evaluation against hospital bacteria. Phytother Res. 2005 Jun;19(6):519-25. doi: 10.1002/ptr.1696. [PubMed:16114081 ]
- Tawata M, Aida K, Noguchi T, Ozaki Y, Kume S, Sasaki H, Chin M, Onaya T: Anti-platelet action of isoliquiritigenin, an aldose reductase inhibitor in licorice. Eur J Pharmacol. 1992 Feb 25;212(1):87-92. doi: 10.1016/0014-2999(92)90076-g. [PubMed:1555643 ]
- Gaur R, Kumar S, Trivedi P, Bhakuni RS, Bawankule DU, Pal A, Shanker K: Liquiritigenin derivatives and their hepatotoprotective activity. Nat Prod Commun. 2010 Aug;5(8):1243-6. [PubMed:20839627 ]
- Park I, Park KK, Park JH, Chung WY: Isoliquiritigenin induces G2 and M phase arrest by inducing DNA damage and by inhibiting the metaphase/anaphase transition. Cancer Lett. 2009 May 18;277(2):174-81. doi: 10.1016/j.canlet.2008.12.005. Epub 2009 Jan 23. [PubMed:19167809 ]
- Yu SM, Kuo SC: Vasorelaxant effect of isoliquiritigenin, a novel soluble guanylate cyclase activator, in rat aorta. Br J Pharmacol. 1995 Apr;114(8):1587-94. doi: 10.1111/j.1476-5381.1995.tb14943.x. [PubMed:7599926 ]
- Kiganda I, Wieske LHE, Nchiozem-Ngnitedem VA, Chalo D, Umereweneza D, Ndakala A, Herrebout W, Xiong R, Karpinski TM, Yenesew A, Erdelyi M: Antimicrobial Dihydroflavonols and Isoflavans Isolated from the Root Bark of Dalbergia gloveri. J Nat Prod. 2024 Sep 27;87(9):2263-2271. doi: 10.1021/acs.jnatprod.4c00690. Epub 2024 Sep 10. [PubMed:39255387 ]
- DOI: 10.1021/acs.jnatprod.4c00690
- PMID: 39255387
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