| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2021-09-23 07:06:08 UTC |
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| Update Date | 2021-09-23 07:06:08 UTC |
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| HMDB ID | HMDB0302154 |
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| Secondary Accession Numbers | None |
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| Metabolite Identification |
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| Common Name | Gardenin B |
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| Description | Gardenin b, also known as demethyltangeretin or 5-hydroxy-4',6,7,8-tetramethoxyflavone, is a member of the class of compounds known as 8-o-methylated flavonoids. 8-o-methylated flavonoids are flavonoids with methoxy groups attached to the C8 atom of the flavonoid backbone. Thus, gardenin b is considered to be a flavonoid lipid molecule. Gardenin b is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Gardenin b can be found in mandarin orange (clementine, tangerine), peppermint, sweet basil, and winter savory, which makes gardenin b a potential biomarker for the consumption of these food products. |
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| Structure | COC1=CC=C(C=C1)C1=CC(=O)C2=C(O1)C(OC)=C(OC)C(OC)=C2O InChI=1S/C19H18O7/c1-22-11-7-5-10(6-8-11)13-9-12(20)14-15(21)17(23-2)19(25-4)18(24-3)16(14)26-13/h5-9,21H,1-4H3 |
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| Synonyms | | Value | Source |
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| 5-Hydroxy-2-(4-methoxyphenyl)-6,7,8-trimethoxy-4H-1-benzopyran-4-one | ChEBI | | 5-Hydroxy-4',6,7,8-tetramethoxyflavone | ChEBI | | Demethyltangeretin | ChEBI | | 5-Demethyltangeretin | MeSH |
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| Chemical Formula | C19H18O7 |
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| Average Molecular Weight | 358.342 |
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| Monoisotopic Molecular Weight | 358.10525293 |
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| IUPAC Name | 5-hydroxy-6,7,8-trimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one |
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| Traditional Name | gardenin B |
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| CAS Registry Number | Not Available |
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| SMILES | COC1=CC=C(C=C1)C1=CC(=O)C2=C(O1)C(OC)=C(OC)C(OC)=C2O |
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| InChI Identifier | InChI=1S/C19H18O7/c1-22-11-7-5-10(6-8-11)13-9-12(20)14-15(21)17(23-2)19(25-4)18(24-3)16(14)26-13/h5-9,21H,1-4H3 |
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| InChI Key | LXEVSYZNYDZSOB-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as 8-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C8 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 | 8-O-methylated flavonoids |
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| Alternative Parents | |
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| Substituents | - 4p-methoxyflavonoid-skeleton
- 6-methoxyflavonoid-skeleton
- 8-methoxyflavonoid-skeleton
- 7-methoxyflavonoid-skeleton
- 5-hydroxyflavonoid
- Flavone
- Hydroxyflavonoid
- Chromone
- Benzopyran
- 1-benzopyran
- Phenol ether
- Anisole
- Methoxybenzene
- Phenoxy compound
- Pyranone
- Alkyl aryl ether
- Monocyclic benzene moiety
- Pyran
- Benzenoid
- Heteroaromatic compound
- Vinylogous acid
- Ether
- Organoheterocyclic compound
- Oxacycle
- Organic oxygen compound
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxide
- 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 | Not Available |
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| Experimental Molecular 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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| 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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| Predicted by Siyang on May 30, 2022 | 15.3137 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.22 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2877.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 346.0 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 204.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 200.7 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 345.7 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 600.1 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 | 857.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 141.9 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1358.2 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 547.8 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 | 1596.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 418.6 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 511.0 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 399.1 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 349.2 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 | 27.3 seconds | 40023050 |
Predicted Kovats Retention IndicesNot Available |
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| 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 - Gardenin B 10V, Positive-QTOF | splash10-0a4i-0009000000-94235dbf8f75c99fbd22 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 20V, Positive-QTOF | splash10-0a4i-0009000000-927ca53e683bc4ba6953 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 40V, Positive-QTOF | splash10-03di-0259000000-dea961e95f28fe0273c2 | 2016-08-02 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 10V, Negative-QTOF | splash10-0a4i-0009000000-86528933f1fb5f6f49bf | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 20V, Negative-QTOF | splash10-0a4i-0009000000-779d95151f886854293c | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 40V, Negative-QTOF | splash10-01oy-2195000000-06c67f7a540f7657254d | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 10V, Positive-QTOF | splash10-0a4i-0009000000-9216d00d19e0b6ee7720 | 2021-10-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 20V, Positive-QTOF | splash10-0a4i-0009000000-e8d30684b099443b2b9d | 2021-10-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 40V, Positive-QTOF | splash10-014u-0369000000-064772e20e1e0bcdf3cc | 2021-10-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 10V, Negative-QTOF | splash10-0a4i-0009000000-c2a6e417d0c66429ddb2 | 2021-10-21 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Gardenin B 20V, Negative-QTOF | splash10-0btc-0009000000-3fa5c4168345d9b2222f | 2021-10-21 | Wishart Lab | View Spectrum |
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