| 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 18:41:54 UTC |
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| Update Date | 2022-03-07 02:53:54 UTC |
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| HMDB ID | HMDB0033924 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Cajanol |
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| Description | Cajanol belongs to the class of organic compounds known as 7-o-methylated isoflavonoids. These are isoflavonoids with methoxy groups attached to the C7 atom of the isoflavonoid backbone. Isoflavonoids are natural products derived from 3-phenylchromen-4-one. Thus, cajanol is considered to be a flavonoid. Cajanol has been detected, but not quantified in, pigeon peas (Cajanus cajan) and pulses. This could make cajanol a potential biomarker for the consumption of these foods. Based on a literature review a significant number of articles have been published on Cajanol. |
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| Structure | COC1=CC(O)=C2C(=O)C(COC2=C1)C1=C(OC)C=C(O)C=C1 InChI=1S/C17H16O6/c1-21-10-6-13(19)16-15(7-10)23-8-12(17(16)20)11-4-3-9(18)5-14(11)22-2/h3-7,12,18-19H,8H2,1-2H3 |
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| Synonyms | | Value | Source |
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| 4',5-Dihydroxy-2',7-dimethoxyisoflavanone | HMDB |
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| Chemical Formula | C17H16O6 |
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| Average Molecular Weight | 316.3053 |
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| Monoisotopic Molecular Weight | 316.094688244 |
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| IUPAC Name | 5-hydroxy-3-(4-hydroxy-2-methoxyphenyl)-7-methoxy-3,4-dihydro-2H-1-benzopyran-4-one |
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| Traditional Name | cajanol |
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| CAS Registry Number | 61020-70-0 |
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| SMILES | COC1=CC(O)=C2C(=O)C(COC2=C1)C1=C(OC)C=C(O)C=C1 |
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| InChI Identifier | InChI=1S/C17H16O6/c1-21-10-6-13(19)16-15(7-10)23-8-12(17(16)20)11-4-3-9(18)5-14(11)22-2/h3-7,12,18-19H,8H2,1-2H3 |
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| InChI Key | RYYWWFXWFMYKJM-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 isoflavonoids. These are isoflavonoids with methoxy groups attached to the C7 atom of the isoflavonoid backbone. Isoflavonoids are natural products derived from 3-phenylchromen-4-one. |
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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-methylated isoflavonoids |
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| Alternative Parents | |
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| Substituents | - 2p-methoxyisoflavonoid-skeleton
- 7-methoxyisoflavonoid-skeleton
- Hydroxyisoflavonoid
- Isoflavanol
- Isoflavanone
- Isoflavan
- Chromone
- Chromane
- Benzopyran
- Methoxyphenol
- 1-benzopyran
- Phenoxy compound
- Anisole
- Methoxybenzene
- Phenol ether
- Aryl ketone
- Aryl alkyl ketone
- Alkyl aryl ether
- 1-hydroxy-2-unsubstituted benzenoid
- 1-hydroxy-4-unsubstituted benzenoid
- Phenol
- Benzenoid
- Monocyclic benzene moiety
- Vinylogous acid
- Ketone
- Organoheterocyclic compound
- Oxacycle
- Ether
- Organooxygen compound
- Hydrocarbon derivative
- Organic oxide
- Organic oxygen 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 | |
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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 | 62.2 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 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. Predicted by Afia on May 17, 2022. | 7.82 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 13.2581 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.5 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 2347.7 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 295.3 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 159.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 173.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 191.9 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 646.2 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 | 643.4 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 93.5 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 1172.2 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 464.0 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 | 1469.2 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 412.4 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 418.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 355.1 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 210.4 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 | 97.3 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Cajanol,1TMS,isomer #1 | COC1=CC2=C(C(=O)C(C3=CC=C(O)C=C3OC)CO2)C(O[Si](C)(C)C)=C1 | 2894.3 | Semi standard non polar | 33892256 | | Cajanol,1TMS,isomer #2 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3OC)COC2=C1 | 2848.0 | Semi standard non polar | 33892256 | | Cajanol,2TMS,isomer #1 | COC1=CC2=C(C(=O)C(C3=CC=C(O[Si](C)(C)C)C=C3OC)CO2)C(O[Si](C)(C)C)=C1 | 2791.4 | Semi standard non polar | 33892256 | | Cajanol,1TBDMS,isomer #1 | COC1=CC2=C(C(=O)C(C3=CC=C(O)C=C3OC)CO2)C(O[Si](C)(C)C(C)(C)C)=C1 | 3146.0 | Semi standard non polar | 33892256 | | Cajanol,1TBDMS,isomer #2 | COC1=CC(O)=C2C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3OC)COC2=C1 | 3103.4 | Semi standard non polar | 33892256 | | Cajanol,2TBDMS,isomer #1 | COC1=CC2=C(C(=O)C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3OC)CO2)C(O[Si](C)(C)C(C)(C)C)=C1 | 3290.4 | 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 - Cajanol GC-MS (Non-derivatized) - 70eV, Positive | splash10-000i-0962000000-1f286a9d768f17f227ba | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cajanol GC-MS (2 TMS) - 70eV, Positive | splash10-006t-5743900000-66dcacacf6409e3d921b | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Cajanol 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 - Cajanol 10V, Positive-QTOF | splash10-014i-0439000000-9178972eb0df1ac5bbd9 | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 20V, Positive-QTOF | splash10-014r-0943000000-a6bbc67ee5ad791006a6 | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 40V, Positive-QTOF | splash10-014r-1910000000-4d36e1a0c0db818e2b5a | 2015-04-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 10V, Negative-QTOF | splash10-014i-0019000000-bc5ce896443d7ccab549 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 20V, Negative-QTOF | splash10-014i-0897000000-c3f885ce66d3c32a9950 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 40V, Negative-QTOF | splash10-00xr-8970000000-c9ad7f726a2934c55a66 | 2015-04-25 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 10V, Positive-QTOF | splash10-014i-0209000000-ee2b84d4fd0a849d586a | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 20V, Positive-QTOF | splash10-014m-0902000000-cf023e624af01c6e8958 | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 40V, Positive-QTOF | splash10-014i-0920000000-ee180313b1e9aad8cb5e | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 10V, Negative-QTOF | splash10-014i-0009000000-57e0edfe40e4094c309a | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 20V, Negative-QTOF | splash10-016s-0896000000-33081233015da57b7a0c | 2021-09-22 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Cajanol 40V, Negative-QTOF | splash10-014i-0390000000-d3f68146d89e03e730aa | 2021-09-22 | Wishart Lab | View Spectrum |
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| General References | - Liu XL, Zhang XJ, Fu YJ, Zu YG, Wu N, Liang L, Efferth T: Cajanol inhibits the growth of Escherichia coli and Staphylococcus aureus by acting on membrane and DNA damage. Planta Med. 2011 Jan;77(2):158-63. doi: 10.1055/s-0030-1250146. Epub 2010 Aug 27. [PubMed:20803417 ]
- (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .
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