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 17:51:15 UTC |
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Update Date | 2022-03-07 02:53:26 UTC |
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HMDB ID | HMDB0032696 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Cajanin |
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Description | Cajanin belongs to the class of organic compounds known as 7-o-methylisoflavones. These are isoflavones with methoxy groups attached to the C7 atom of the isoflavone backbone. Thus, cajanin is considered to be a flavonoid. Cajanin has been detected, but not quantified in, several different foods, such as arabica coffees (Coffea arabica), coffee and coffee products, pigeon peas (Cajanus cajan), pulses, and robusta coffees (Coffea canephora). This could make cajanin a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on Cajanin. |
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Structure | COC1=CC(O)=C2C(=O)C(=COC2=C1)C1=C(O)C=C(O)C=C1 InChI=1S/C16H12O6/c1-21-9-5-13(19)15-14(6-9)22-7-11(16(15)20)10-3-2-8(17)4-12(10)18/h2-7,17-19H,1H3 |
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Synonyms | Value | Source |
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2',4',5-Trihydroxy-7-methoxyisoflavone | HMDB | Cajinin | HMDB |
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Chemical Formula | C16H12O6 |
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Average Molecular Weight | 300.2629 |
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Monoisotopic Molecular Weight | 300.063388116 |
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IUPAC Name | 3-(2,4-dihydroxyphenyl)-5-hydroxy-7-methoxy-4H-chromen-4-one |
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Traditional Name | cajanin |
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CAS Registry Number | 32884-36-9 |
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SMILES | COC1=CC(O)=C2C(=O)C(=COC2=C1)C1=C(O)C=C(O)C=C1 |
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InChI Identifier | InChI=1S/C16H12O6/c1-21-9-5-13(19)15-14(6-9)22-7-11(16(15)20)10-3-2-8(17)4-12(10)18/h2-7,17-19H,1H3 |
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InChI Key | ALFNTRJPGFNJQV-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as 7-o-methylisoflavones. These are isoflavones with methoxy groups attached to the C7 atom of the isoflavone backbone. |
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Kingdom | Organic compounds |
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Super Class | Phenylpropanoids and polyketides |
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Class | Isoflavonoids |
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Sub Class | O-methylated isoflavonoids |
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Direct Parent | 7-O-methylisoflavones |
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Alternative Parents | |
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Substituents | - 7-o-methylisoflavone
- Isoflavone
- Hydroxyisoflavonoid
- Chromone
- Benzopyran
- 1-benzopyran
- Anisole
- Resorcinol
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Pyranone
- Alkyl aryl ether
- Monocyclic benzene moiety
- Benzenoid
- Pyran
- Vinylogous acid
- Heteroaromatic compound
- Ether
- Oxacycle
- Organoheterocyclic compound
- Organooxygen compound
- Organic oxide
- Organic oxygen compound
- Hydrocarbon derivative
- 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 | |
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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 | 208 - 210 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 147.7 mg/L @ 25 °C (est) | The Good Scents Company Information System | 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 Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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Cajanin,1TMS,isomer #1 | COC1=CC(O[Si](C)(C)C)=C2C(=O)C(C3=CC=C(O)C=C3O)=COC2=C1 | 3084.8 | Semi standard non polar | 33892256 | Cajanin,1TMS,isomer #2 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O)C=C3O[Si](C)(C)C)=COC2=C1 | 3027.4 | Semi standard non polar | 33892256 | Cajanin,1TMS,isomer #3 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3O)=COC2=C1 | 3080.0 | Semi standard non polar | 33892256 | Cajanin,2TMS,isomer #1 | COC1=CC(O[Si](C)(C)C)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3O)=COC2=C1 | 2955.6 | Semi standard non polar | 33892256 | Cajanin,2TMS,isomer #2 | COC1=CC(O[Si](C)(C)C)=C2C(=O)C(C3=CC=C(O)C=C3O[Si](C)(C)C)=COC2=C1 | 2929.7 | Semi standard non polar | 33892256 | Cajanin,2TMS,isomer #3 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3O[Si](C)(C)C)=COC2=C1 | 2962.3 | Semi standard non polar | 33892256 | Cajanin,3TMS,isomer #1 | COC1=CC(O[Si](C)(C)C)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3O[Si](C)(C)C)=COC2=C1 | 2891.1 | Semi standard non polar | 33892256 | Cajanin,1TBDMS,isomer #1 | COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(C3=CC=C(O)C=C3O)=COC2=C1 | 3358.0 | Semi standard non polar | 33892256 | Cajanin,1TBDMS,isomer #2 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O)C=C3O[Si](C)(C)C(C)(C)C)=COC2=C1 | 3307.2 | Semi standard non polar | 33892256 | Cajanin,1TBDMS,isomer #3 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3O)=COC2=C1 | 3342.2 | Semi standard non polar | 33892256 | Cajanin,2TBDMS,isomer #1 | COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3O)=COC2=C1 | 3484.7 | Semi standard non polar | 33892256 | Cajanin,2TBDMS,isomer #2 | COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(C3=CC=C(O)C=C3O[Si](C)(C)C(C)(C)C)=COC2=C1 | 3440.6 | Semi standard non polar | 33892256 | Cajanin,2TBDMS,isomer #3 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3O[Si](C)(C)C(C)(C)C)=COC2=C1 | 3467.2 | Semi standard non polar | 33892256 | Cajanin,3TBDMS,isomer #1 | COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3O[Si](C)(C)C(C)(C)C)=COC2=C1 | 3591.1 | Semi standard non polar | 33892256 |
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| GC-MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted GC-MS | Predicted GC-MS Spectrum - Cajanin GC-MS (Non-derivatized) - 70eV, Positive | splash10-00di-0591000000-2d725dedc079e3bf5cc4 | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Cajanin GC-MS (3 TMS) - 70eV, Positive | splash10-0fkc-2170950000-8a37dcc2d7e2a3c24a67 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Cajanin GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum |
MS/MS SpectraSpectrum Type | Description | Splash Key | Deposition Date | Source | View |
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Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 10V, Positive-QTOF | splash10-0udi-0009000000-9de62c366ea45b58088f | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 20V, Positive-QTOF | splash10-0udi-0019000000-faebb53f0f824f475c3f | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 40V, Positive-QTOF | splash10-0uy0-3790000000-1a6c3965725a8acc1921 | 2016-08-01 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 10V, Negative-QTOF | splash10-0002-0090000000-f9e2a2f74f45fb1e1fe4 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 20V, Negative-QTOF | splash10-0002-0090000000-85b3c09fa13b64ca415e | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 40V, Negative-QTOF | splash10-0159-3690000000-fcc07e28e468be59704f | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 10V, Negative-QTOF | splash10-0002-0090000000-fb4a565723d52a1e4624 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 20V, Negative-QTOF | splash10-0002-0090000000-fb4a565723d52a1e4624 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 40V, Negative-QTOF | splash10-00mo-0590000000-c12ad5716ba473535f98 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 10V, Positive-QTOF | splash10-0udi-0009000000-545fc7c692e0abcd7966 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 20V, Positive-QTOF | splash10-0udi-0009000000-545fc7c692e0abcd7966 | 2021-09-24 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanin 40V, Positive-QTOF | splash10-0a7i-0390000000-9e3fdcbbe9204f317f21 | 2021-09-24 | Wishart Lab | View Spectrum |
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