| Record Information |
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| Version | 5.0 |
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| Status | Expected but not Quantified |
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| Creation Date | 2012-09-06 15:16:51 UTC |
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| Update Date | 2022-03-07 02:51:53 UTC |
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| HMDB ID | HMDB0015160 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Amlexanox |
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| Description | Amlexanox, also known as aphthasol or solfa, belongs to the class of organic compounds known as chromeno[2,3-b]pyridine-5-ones. Chromeno[2,3-b]pyridine-5-ones are compounds containing a Chromeno[2,3-b]pyridine moiety that carries an oxo group at the 5-position. Amlexanox is a drug which is used as a paste in the mouth to treat aphthous ulcers (canker sores). . Amlexanox is an extremely weak basic (essentially neutral) compound (based on its pKa). A pyridochromene-derived monocarboxylic acid having an amino substituent at the 2-position, an oxo substituent at the 5-position and an isopropyl substituent at the 7-position. |
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| Structure | CC(C)C1=CC2=C(OC3=NC(N)=C(C=C3C2=O)C(O)=O)C=C1 InChI=1S/C16H14N2O4/c1-7(2)8-3-4-12-9(5-8)13(19)10-6-11(16(20)21)14(17)18-15(10)22-12/h3-7H,1-2H3,(H2,17,18)(H,20,21) |
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| Synonyms | | Value | Source |
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| 2-Amino-7-isopropyl-5-oxo-5H-(1)benzopyrano(2,3-b)pyridine-3-carboxylic acid | ChEBI | | Amlexanoxo | ChEBI | | Amlexanoxum | ChEBI | | Aphthasol | Kegg | | Solfa | Kegg | | 2-Amino-7-isopropyl-5-oxo-5H-(1)benzopyrano(2,3-b)pyridine-3-carboxylate | Generator | | 2-Amino-7-isopropyl-5-oxo-5H-(1)benzopyrano(2,3b)pyridine-3-carboxylic acid | HMDB | | GlaxoSmithKline brand OF amlexanox | HMDB | | Amoxanox | HMDB |
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| Chemical Formula | C16H14N2O4 |
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| Average Molecular Weight | 298.2934 |
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| Monoisotopic Molecular Weight | 298.095356946 |
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| IUPAC Name | 2-amino-5-oxo-7-(propan-2-yl)-5H-chromeno[2,3-b]pyridine-3-carboxylic acid |
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| Traditional Name | aphthasol |
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| CAS Registry Number | 68302-57-8 |
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| SMILES | CC(C)C1=CC2=C(OC3=NC(N)=C(C=C3C2=O)C(O)=O)C=C1 |
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| InChI Identifier | InChI=1S/C16H14N2O4/c1-7(2)8-3-4-12-9(5-8)13(19)10-6-11(16(20)21)14(17)18-15(10)22-12/h3-7H,1-2H3,(H2,17,18)(H,20,21) |
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| InChI Key | SGRYPYWGNKJSDL-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as chromeno[2,3-b]pyridine-5-ones. Chromeno[2,3-b]pyridine-5-ones are compounds containing a Chromeno[2,3-b]pyridine moiety that carries an oxo group at the 5-position. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Benzopyrans |
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| Sub Class | 1-benzopyrans |
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| Direct Parent | Chromeno[2,3-b]pyridine-5-ones |
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| Alternative Parents | |
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| Substituents | - Chromeno[2,3-b]pyridine-5-one
- Chromenopyridine
- Pyranopyridine
- Pyridine carboxylic acid
- Pyridine carboxylic acid or derivatives
- Aminopyridine
- Pyranone
- Pyran
- Pyridine
- Benzenoid
- Imidolactam
- Heteroaromatic compound
- Vinylogous amide
- Amino acid or derivatives
- Amino acid
- Oxacycle
- Azacycle
- Carboxylic acid derivative
- Carboxylic acid
- Monocarboxylic acid or derivatives
- Amine
- Organooxygen compound
- Organonitrogen compound
- Primary amine
- Organic oxygen compound
- Organopnictogen compound
- Organic oxide
- Organic nitrogen 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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| Not Available | 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 | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.15 g/L | Not Available | | LogP | 4.1 | 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. | 5.19 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 12.9082 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.91 minutes | 32390414 | | AjsUoB = Accucore 150 Amide HILIC with 10mM Ammonium Formate, 0.1% Formic Acid | 29.5 seconds | 40023050 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1950.6 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 334.4 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 153.0 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 192.9 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 147.5 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 448.0 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 | 644.6 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 68.7 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 994.3 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 428.5 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 | 1517.8 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 334.9 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 409.2 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 282.5 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 219.5 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 | 24.3 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Amlexanox,1TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 3090.6 | Semi standard non polar | 33892256 | | Amlexanox,1TMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3064.7 | Semi standard non polar | 33892256 | | Amlexanox,2TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 3012.0 | Semi standard non polar | 33892256 | | Amlexanox,2TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 2992.9 | Standard non polar | 33892256 | | Amlexanox,2TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 3628.1 | Standard polar | 33892256 | | Amlexanox,2TMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 2916.1 | Semi standard non polar | 33892256 | | Amlexanox,2TMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3016.7 | Standard non polar | 33892256 | | Amlexanox,2TMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3566.6 | Standard polar | 33892256 | | Amlexanox,3TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 2916.0 | Semi standard non polar | 33892256 | | Amlexanox,3TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 3023.0 | Standard non polar | 33892256 | | Amlexanox,3TMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C)[Si](C)(C)C)=C(C(=O)O[Si](C)(C)C)C=C3C(=O)C2=C1 | 3348.7 | Standard polar | 33892256 | | Amlexanox,1TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3296.3 | Semi standard non polar | 33892256 | | Amlexanox,1TBDMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C(C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3290.3 | Semi standard non polar | 33892256 | | Amlexanox,2TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3375.1 | Semi standard non polar | 33892256 | | Amlexanox,2TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3323.5 | Standard non polar | 33892256 | | Amlexanox,2TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3738.0 | Standard polar | 33892256 | | Amlexanox,2TBDMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3316.4 | Semi standard non polar | 33892256 | | Amlexanox,2TBDMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3392.4 | Standard non polar | 33892256 | | Amlexanox,2TBDMS,isomer #2 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O)C=C3C(=O)C2=C1 | 3648.5 | Standard polar | 33892256 | | Amlexanox,3TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3479.4 | Semi standard non polar | 33892256 | | Amlexanox,3TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3541.8 | Standard non polar | 33892256 | | Amlexanox,3TBDMS,isomer #1 | CC(C)C1=CC=C2OC3=NC(N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(C(=O)O[Si](C)(C)C(C)(C)C)C=C3C(=O)C2=C1 | 3583.5 | Standard 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 - Amlexanox GC-MS (Non-derivatized) - 70eV, Positive | splash10-001i-0390000000-7ee61efa9635374d2e64 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Amlexanox GC-MS (1 TMS) - 70eV, Positive | splash10-00di-9456000000-b9624d4096b63a87688a | 2017-10-06 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Amlexanox GC-MS (Non-derivatized) - 70eV, Positive | Not Available | 2021-10-12 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Amlexanox 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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| Experimental LC-MS/MS | LC-MS/MS Spectrum - Amlexanox , positive-QTOF | splash10-0002-0091000000-00993cade43b41e35544 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Amlexanox 35V, Negative-QTOF | splash10-0udi-0090000000-b3b8517df7b9224b9b0f | 2021-09-20 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Amlexanox 35V, Positive-QTOF | splash10-000t-0090000000-8e4fc4d5f71fd828eec7 | 2021-09-20 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 10V, Positive-QTOF | splash10-0002-0090000000-6251cf97e8c45ca915cd | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 20V, Positive-QTOF | splash10-0zgi-0090000000-4e3a6005c4c7903e8304 | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 40V, Positive-QTOF | splash10-000i-2290000000-4ce7d5b38aec871db123 | 2016-06-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 10V, Negative-QTOF | splash10-0udj-0090000000-363c3c4f6b29bd793e36 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 20V, Negative-QTOF | splash10-0udi-0090000000-4242451c12a02c097cfc | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 40V, Negative-QTOF | splash10-0ktr-2290000000-fe4c8daf1591c12dffa9 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 10V, Positive-QTOF | splash10-0002-0090000000-298901b9b72f633ddf1a | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 20V, Positive-QTOF | splash10-001j-0090000000-7ae2b8d3206733616bb9 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 40V, Positive-QTOF | splash10-0udi-0290000000-23dd9de629c968ef59aa | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 10V, Negative-QTOF | splash10-0udi-0090000000-977fc6f1952ba1618211 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 20V, Negative-QTOF | splash10-0udi-0090000000-d126c3ae8460a1113700 | 2021-10-11 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Amlexanox 40V, Negative-QTOF | splash10-01p9-0590000000-299584979cf6ca2fac81 | 2021-10-11 | Wishart Lab | View Spectrum |
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