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 21:08:41 UTC |
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Update Date | 2022-03-07 02:54:46 UTC |
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HMDB ID | HMDB0036075 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Limonexic acid |
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Description | Limonexic acid, also known as limonexate or limonexin, belongs to the class of organic compounds known as limonoids. These are highly oxygenated, modified terpenoids with a prototypical structure either containing or derived from a precursor with a 4,4,8-trimethyl-17-furanylsteroid skeleton. All naturally occurring citrus limonoids contain a furan ring attached to the D-ring, at C-17, as well as oxygen containing functional groups at C-3, C-4, C-7, C-16 and C-17. Limonexic acid is an extremely weak basic (essentially neutral) compound (based on its pKa). |
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Structure | CC1(C)OC2CC(=O)OCC22C1CC(=O)C1(C)C2CCC2(C)C(OC(=O)C3OC123)C1=CC(=O)OC1O InChI=1S/C26H30O10/c1-22(2)13-8-14(27)24(4)12(25(13)10-32-16(28)9-15(25)35-22)5-6-23(3)18(11-7-17(29)33-20(11)30)34-21(31)19-26(23,24)36-19/h7,12-13,15,18-20,30H,5-6,8-10H2,1-4H3 |
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Synonyms | Value | Source |
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Limonexate | Generator | Limonexin | HMDB | Shihulimonin a | HMDB |
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Chemical Formula | C26H30O10 |
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Average Molecular Weight | 502.5104 |
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Monoisotopic Molecular Weight | 502.18389718 |
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IUPAC Name | 19-(2-hydroxy-5-oxo-2,5-dihydrofuran-3-yl)-9,9,13,20-tetramethyl-4,8,15,18-tetraoxahexacyclo[11.9.0.0²,⁷.0²,¹⁰.0¹⁴,¹⁶.0¹⁴,²⁰]docosane-5,12,17-trione |
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Traditional Name | 19-(2-hydroxy-5-oxo-2H-furan-3-yl)-9,9,13,20-tetramethyl-4,8,15,18-tetraoxahexacyclo[11.9.0.0²,⁷.0²,¹⁰.0¹⁴,¹⁶.0¹⁴,²⁰]docosane-5,12,17-trione |
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CAS Registry Number | 99026-99-0 |
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SMILES | CC1(C)OC2CC(=O)OCC22C1CC(=O)C1(C)C2CCC2(C)C(OC(=O)C3OC123)C1=CC(=O)OC1O |
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InChI Identifier | InChI=1S/C26H30O10/c1-22(2)13-8-14(27)24(4)12(25(13)10-32-16(28)9-15(25)35-22)5-6-23(3)18(11-7-17(29)33-20(11)30)34-21(31)19-26(23,24)36-19/h7,12-13,15,18-20,30H,5-6,8-10H2,1-4H3 |
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InChI Key | RTPPVNISJHFPFX-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as limonoids. These are highly oxygenated, modified terpenoids with a prototypical structure either containing or derived from a precursor with a 4,4,8-trimethyl-17-furanylsteroid skeleton. All naturally occurring citrus limonoids contain a furan ring attached to the D-ring, at C-17, as well as oxygen containing functional groups at C-3, C-4, C-7, C-16 and C-17. |
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Kingdom | Organic compounds |
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Super Class | Lipids and lipid-like molecules |
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Class | Prenol lipids |
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Sub Class | Triterpenoids |
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Direct Parent | Limonoids |
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Alternative Parents | |
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Substituents | - Limonoid skeleton
- Steroid lactone
- 11-oxosteroid
- Oxosteroid
- 2-oxosteroid
- Steroid
- Naphthopyran
- Naphthalene
- Tricarboxylic acid or derivatives
- 1,4-dioxepane
- Delta valerolactone
- Dioxepane
- Delta_valerolactone
- Oxane
- Pyran
- 2-furanone
- Tetrahydrofuran
- Enoate ester
- Alpha,beta-unsaturated carboxylic ester
- Dihydrofuran
- Carboxylic acid ester
- Lactone
- Ketone
- Hemiacetal
- Organoheterocyclic compound
- Oxacycle
- Carboxylic acid derivative
- Dialkyl ether
- Oxirane
- Ether
- Hydrocarbon derivative
- Organic oxygen compound
- Carbonyl group
- Organooxygen compound
- Organic oxide
- Aliphatic heteropolycyclic compound
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Molecular Framework | Aliphatic heteropolycyclic compounds |
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External Descriptors | Not Available |
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Ontology |
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Physiological effect | Not Available |
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Disposition | |
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Process | |
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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 | 285 - 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 Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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Limonexic acid,1TMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1CC(=O)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C)OC(=O)C3OC321 | 3964.5 | Semi standard non polar | 33892256 | Limonexic acid,1TMS,isomer #2 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O)OC(=O)C3OC321 | 3900.2 | Semi standard non polar | 33892256 | Limonexic acid,2TMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C)OC(=O)C3OC321 | 3855.3 | Semi standard non polar | 33892256 | Limonexic acid,2TMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C)OC(=O)C3OC321 | 3580.3 | Standard non polar | 33892256 | Limonexic acid,1TBDMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1CC(=O)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C(C)(C)C)OC(=O)C3OC321 | 4208.5 | Semi standard non polar | 33892256 | Limonexic acid,1TBDMS,isomer #2 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C(C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O)OC(=O)C3OC321 | 4148.4 | Semi standard non polar | 33892256 | Limonexic acid,2TBDMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C(C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C(C)(C)C)OC(=O)C3OC321 | 4312.9 | Semi standard non polar | 33892256 | Limonexic acid,2TBDMS,isomer #1 | CC1(C)OC2CC(=O)OCC23C1C=C(O[Si](C)(C)C(C)(C)C)C1(C)C3CCC2(C)C(C3=CC(=O)OC3O[Si](C)(C)C(C)(C)C)OC(=O)C3OC321 | 4001.0 | Standard non polar | 33892256 |
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