| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-11 17:30:52 UTC |
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| Update Date | 2022-03-07 02:52:11 UTC |
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| HMDB ID | HMDB0029512 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | 4',5-Dihydroxy-7-methoxy-6-methylflavone |
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| Description | 4',5-Dihydroxy-7-methoxy-6-methylflavone, also known as 8-demethylsideroxylin, belongs to the class of organic compounds known as 7-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C7 atom of the flavonoid backbone. Thus, 4',5-dihydroxy-7-methoxy-6-methylflavone is considered to be a flavonoid. 4',5-Dihydroxy-7-methoxy-6-methylflavone is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. Based on a literature review very few articles have been published on 4',5-Dihydroxy-7-methoxy-6-methylflavone. |
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| Structure | COC1=C(C)C(O)=C2C(=O)C=C(OC2=C1)C1=CC=C(O)C=C1 InChI=1S/C17H14O5/c1-9-13(21-2)8-15-16(17(9)20)12(19)7-14(22-15)10-3-5-11(18)6-4-10/h3-8,18,20H,1-2H3 |
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| Synonyms | | Value | Source |
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| 5,4'-Dihydroxy-7-methoxy-6-methylflavone | ChEBI | | 5-Hydroxy-2-(4-hydroxyphenyl)-7-methoxy-6-methyl-4H-1-benzopyran-4-one | HMDB | | 8-Demethylsideroxylin | HMDB | | 8-Desmethyl-sideroxylin | HMDB | | 8-Desmethylsideroxylin | HMDB |
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| Chemical Formula | C17H14O5 |
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| Average Molecular Weight | 298.2901 |
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| Monoisotopic Molecular Weight | 298.084123558 |
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| IUPAC Name | 5-hydroxy-2-(4-hydroxyphenyl)-7-methoxy-6-methyl-4H-chromen-4-one |
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| Traditional Name | 8-demethylsideroxylin |
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| CAS Registry Number | 80621-54-1 |
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| SMILES | COC1=C(C)C(O)=C2C(=O)C=C(OC2=C1)C1=CC=C(O)C=C1 |
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| InChI Identifier | InChI=1S/C17H14O5/c1-9-13(21-2)8-15-16(17(9)20)12(19)7-14(22-15)10-3-5-11(18)6-4-10/h3-8,18,20H,1-2H3 |
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| InChI Key | VQCXCCMCKDSXMQ-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as 7-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C7 atom of the flavonoid backbone. |
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| Kingdom | Organic compounds |
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| Super Class | Phenylpropanoids and polyketides |
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| Class | Flavonoids |
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| Sub Class | O-methylated flavonoids |
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| Direct Parent | 7-O-methylated flavonoids |
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| Alternative Parents | |
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| Substituents | - 7-methoxyflavonoid-skeleton
- 4'-hydroxyflavonoid
- 5-hydroxyflavonoid
- Flavone
- Hydroxyflavonoid
- Chromone
- Benzopyran
- 1-benzopyran
- Anisole
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Alkyl aryl ether
- Pyranone
- Phenol
- Monocyclic benzene moiety
- Benzenoid
- Pyran
- Vinylogous acid
- Heteroaromatic compound
- Ether
- Organoheterocyclic compound
- Oxacycle
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Physiological effect | Not Available |
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| Disposition | |
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| Process | Not Available |
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| Role | Not Available |
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| Physical Properties |
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| State | Solid |
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| Experimental Molecular Properties | | Property | Value | Reference |
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| Melting Point | 284 - 286 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Experimental Chromatographic Properties | Not Available |
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| Predicted Molecular Properties | |
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| Predicted Chromatographic Properties | Predicted Collision Cross SectionsPredicted Retention Times Underivatized| Chromatographic Method | Retention Time | Reference |
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| Measured using a Waters Acquity ultraperformance liquid chromatography (UPLC) ethylene-bridged hybrid (BEH) C18 column (100 mm × 2.1 mm; 1.7 μmparticle diameter). Predicted by Afia on May 17, 2022. | 7.98 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 15.5486 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.0 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2589.3 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 424.5 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 197.7 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 233.8 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 501.2 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 654.1 seconds | 40023050 | | BfG_NTS_RP1 =Agilent Zorbax Eclipse Plus C18 (2.1 mm x 150 mm, 3.5 um) with Water:ACN and 0.1% Formic Acid | 762.9 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 125.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1384.6 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 521.9 seconds | 40023050 | | UFZ_Phenomenex = Kinetex Core-Shell C18 2.6 um, 3.0 x 100 mm, Phenomenex with Water:MeOH and 0.1% Formic Acid | 1557.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 454.0 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 471.8 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 434.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 231.0 seconds | 40023050 | | Meister zic-pHILIC pH9.3 = Merck SeQuant ZIC-pHILIC column with ACN:Water 5mM NH4Ac pH9.3 and 5mM ammonium acetate in water | 90.6 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| 4',5-Dihydroxy-7-methoxy-6-methylflavone,1TMS,isomer #1 | COC1=CC2=C(C(O[Si](C)(C)C)=C1C)C(=O)C=C(C1=CC=C(O)C=C1)O2 | 3111.0 | Semi standard non polar | 33892256 | | 4',5-Dihydroxy-7-methoxy-6-methylflavone,1TMS,isomer #2 | COC1=CC2=C(C(O)=C1C)C(=O)C=C(C1=CC=C(O[Si](C)(C)C)C=C1)O2 | 3205.7 | Semi standard non polar | 33892256 | | 4',5-Dihydroxy-7-methoxy-6-methylflavone,2TMS,isomer #1 | COC1=CC2=C(C(O[Si](C)(C)C)=C1C)C(=O)C=C(C1=CC=C(O[Si](C)(C)C)C=C1)O2 | 3194.8 | Semi standard non polar | 33892256 | | 4',5-Dihydroxy-7-methoxy-6-methylflavone,1TBDMS,isomer #1 | COC1=CC2=C(C(O[Si](C)(C)C(C)(C)C)=C1C)C(=O)C=C(C1=CC=C(O)C=C1)O2 | 3363.5 | Semi standard non polar | 33892256 | | 4',5-Dihydroxy-7-methoxy-6-methylflavone,1TBDMS,isomer #2 | COC1=CC2=C(C(O)=C1C)C(=O)C=C(C1=CC=C(O[Si](C)(C)C(C)(C)C)C=C1)O2 | 3442.8 | Semi standard non polar | 33892256 | | 4',5-Dihydroxy-7-methoxy-6-methylflavone,2TBDMS,isomer #1 | COC1=CC2=C(C(O[Si](C)(C)C(C)(C)C)=C1C)C(=O)C=C(C1=CC=C(O[Si](C)(C)C(C)(C)C)C=C1)O2 | 3689.6 | Semi standard non polar | 33892256 |
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| GC-MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted GC-MS | Predicted GC-MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone GC-MS (Non-derivatized) - 70eV, Positive | splash10-014i-0390000000-96ed347dca125a37ab8b | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone GC-MS (2 TMS) - 70eV, Positive | splash10-00vi-3359700000-39a3db4ae015d2759a4c | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS Spectra| Spectrum Type | Description | Splash Key | Deposition Date | Source | View |
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| Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 10V, Positive-QTOF | splash10-0002-0090000000-e1cc5ed174d56766f340 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 20V, Positive-QTOF | splash10-0002-0090000000-5de2f7f2587cc093e362 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 40V, Positive-QTOF | splash10-0fb9-3790000000-315fa43c144dda47386d | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 10V, Negative-QTOF | splash10-0002-0090000000-cba666d2db9505376ec1 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 20V, Negative-QTOF | splash10-0002-0090000000-08b338d59b21f8b65306 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 40V, Negative-QTOF | splash10-0170-4960000000-ce232a098b2d2f42f311 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 10V, Positive-QTOF | splash10-0002-0090000000-9b410a4cce68ead03b3b | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 20V, Positive-QTOF | splash10-0002-0090000000-68753556a141556a2a95 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 40V, Positive-QTOF | splash10-0a4i-0290000000-c8e4a7bfee4317a1cf50 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 10V, Negative-QTOF | splash10-0002-0090000000-bfe4eca51ec0a2a32edf | 2021-09-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7-methoxy-6-methylflavone 20V, Negative-QTOF | splash10-0f7k-0090000000-11f4cbb2469ab3dc4376 | 2021-09-25 | Wishart Lab | View Spectrum |
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