| 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 15:16:50 UTC |
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| Update Date | 2022-03-07 02:51:42 UTC |
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| HMDB ID | HMDB0014665 |
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| Secondary Accession Numbers | |
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| Metabolite Identification |
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| Common Name | Metolazone |
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| Description | Metolazone is only found in individuals that have used or taken this drug. It is a quinazoline-sulfonamide that is considered a thiazide-like diuretic which is long-acting so useful in chronic renal failure. It also tends to lower blood pressure and increase potassium loss. [PubChem]The actions of metolazone result from interference with the renal tubular mechanism of electrolyte reabsorption. Metolazone acts primarily to inhibit sodium reabsorption at the cortical diluting site and to a lesser extent in the proximal convoluted tubule. Sodium and chloride ions are excreted in approximately equivalent amounts. The increased delivery of sodium to the distal tubular exchange site results in increased potassium excretion. Metolazone does not inhibit carbonic anhydrase. The antihypertensive mechanism of action of metolazone is not fully understood but is presumed to be related to its saluretic and diuretic properties. |
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| Structure | CC1NC2=CC(Cl)=C(C=C2C(=O)N1C1=CC=CC=C1C)S(N)(=O)=O InChI=1S/C16H16ClN3O3S/c1-9-5-3-4-6-14(9)20-10(2)19-13-8-12(17)15(24(18,22)23)7-11(13)16(20)21/h3-8,10,19H,1-2H3,(H2,18,22,23) |
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| Synonyms | | Value | Source |
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| 2-Methyl-3-O-tolyl-6-sulfamyl-7-chloro-1,2,3,4-tetrahydro-4-quinazolinone | ChEBI | | 7-Chloro-1,2,3,4-tetrahydro-2-methyl-3-(2-methylphenyl)-4-oxo-6-quinazolinesulfonamide | ChEBI | | 7-Chloro-1,2,3,4-tetrahydro-2-methyl-4-oxo-3-O-tolyl-6-quinazolinesulfonamide | ChEBI | | Metolazona | ChEBI | | Metolazonum | ChEBI | | Zaroxolyn | ChEBI | | 2-Methyl-3-O-tolyl-6-sulphamyl-7-chloro-1,2,3,4-tetrahydro-4-quinazolinone | Generator | | 7-Chloro-1,2,3,4-tetrahydro-2-methyl-3-(2-methylphenyl)-4-oxo-6-quinazolinesulphonamide | Generator | | 7-Chloro-1,2,3,4-tetrahydro-2-methyl-4-oxo-3-O-tolyl-6-quinazolinesulphonamide | Generator | | Microx | HMDB | | Mykrox | HMDB | | Celltech pharmaceuticals brand OF metolzone | HMDB | | Diulo | HMDB | | UCB pharma brand OF metolazone | HMDB |
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| Chemical Formula | C16H16ClN3O3S |
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| Average Molecular Weight | 365.835 |
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| Monoisotopic Molecular Weight | 365.06008979 |
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| IUPAC Name | 7-chloro-2-methyl-3-(2-methylphenyl)-4-oxo-1,2,3,4-tetrahydroquinazoline-6-sulfonamide |
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| Traditional Name | metolazone |
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| CAS Registry Number | 17560-51-9 |
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| SMILES | CC1NC2=CC(Cl)=C(C=C2C(=O)N1C1=CC=CC=C1C)S(N)(=O)=O |
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| InChI Identifier | InChI=1S/C16H16ClN3O3S/c1-9-5-3-4-6-14(9)20-10(2)19-13-8-12(17)15(24(18,22)23)7-11(13)16(20)21/h3-8,10,19H,1-2H3,(H2,18,22,23) |
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| InChI Key | AQCHWTWZEMGIFD-UHFFFAOYSA-N |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as quinazolines. Quinazolines are compounds containing a quinazoline moiety, which is made up of two fused six-member aromatic rings, a benzene ring and a pyrimidine ring. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Diazanaphthalenes |
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| Sub Class | Benzodiazines |
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| Direct Parent | Quinazolines |
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| Alternative Parents | |
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| Substituents | - Quinazoline
- Secondary aliphatic/aromatic amine
- Toluene
- Aryl chloride
- Aryl halide
- Monocyclic benzene moiety
- Benzenoid
- Organosulfonic acid amide
- Organic sulfonic acid or derivatives
- Vinylogous amide
- Aminosulfonyl compound
- Tertiary carboxylic acid amide
- Sulfonyl
- Organosulfonic acid or derivatives
- Amino acid or derivatives
- Carboxamide group
- Lactam
- Carboxylic acid derivative
- Secondary amine
- Azacycle
- Organic oxide
- Organosulfur compound
- Organooxygen compound
- Organonitrogen compound
- Organochloride
- Organohalogen compound
- Amine
- Organopnictogen compound
- Organic oxygen compound
- 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 | 256 °C | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | 0.041 g/L | Not Available | | LogP | 2.5 | Not Available |
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| Experimental Chromatographic Properties | Experimental Collision Cross Sections |
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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. | 6.26 minutes | 32390414 | | Predicted by Siyang on May 30, 2022 | 12.4533 minutes | 33406817 | | Predicted by Siyang using ReTip algorithm on June 8, 2022 | 1.37 minutes | 32390414 | | Fem_Long = Waters ACQUITY UPLC HSS T3 C18 with Water:MeOH and 0.1% Formic Acid | 1794.5 seconds | 40023050 | | Fem_Lipids = Ascentis Express C18 with (60:40 water:ACN):(90:10 IPA:ACN) and 10mM NH4COOH + 0.1% Formic Acid | 259.1 seconds | 40023050 | | Life_Old = Waters ACQUITY UPLC BEH C18 with Water:(20:80 acetone:ACN) and 0.1% Formic Acid | 139.2 seconds | 40023050 | | Life_New = RP Waters ACQUITY UPLC HSS T3 C18 with Water:(30:70 MeOH:ACN) and 0.1% Formic Acid | 172.2 seconds | 40023050 | | RIKEN = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 66.6 seconds | 40023050 | | Eawag_XBridgeC18 = XBridge C18 3.5u 2.1x50 mm with Water:MeOH and 0.1% Formic Acid | 392.6 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 | 593.5 seconds | 40023050 | | HILIC_BDD_2 = Merck SeQuant ZIC-HILIC with ACN(0.1% formic acid):water(16 mM ammonium formate) | 118.8 seconds | 40023050 | | UniToyama_Atlantis = RP Waters Atlantis T3 (2.1 x 150 mm, 5 um) with ACN:Water and 0.1% Formic Acid | 920.7 seconds | 40023050 | | BDD_C18 = Hypersil Gold 1.9µm C18 with Water:ACN and 0.1% Formic Acid | 400.7 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 | 1338.5 seconds | 40023050 | | SNU_RIKEN_POS = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 319.8 seconds | 40023050 | | RPMMFDA = Waters ACQUITY UPLC BEH C18 with Water:ACN and 0.1% Formic Acid | 358.7 seconds | 40023050 | | MTBLS87 = Merck SeQuant ZIC-pHILIC column with ACN:Water and :ammonium carbonate | 360.2 seconds | 40023050 | | KI_GIAR_zic_HILIC_pH2_7 = Merck SeQuant ZIC-HILIC with ACN:Water and 0.1% FA | 175.1 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 | 178.4 seconds | 40023050 |
Predicted Kovats Retention IndicesUnderivatizedDerivatized| Derivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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| Metolazone,1TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2NC1C | 3130.8 | Semi standard non polar | 33892256 | | Metolazone,1TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2NC1C | 3198.8 | Standard non polar | 33892256 | | Metolazone,1TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2NC1C | 4229.7 | Standard polar | 33892256 | | Metolazone,1TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C)C1C | 2979.5 | Semi standard non polar | 33892256 | | Metolazone,1TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C)C1C | 3270.2 | Standard non polar | 33892256 | | Metolazone,1TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C)C1C | 4426.1 | Standard polar | 33892256 | | Metolazone,2TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2NC1C | 3046.3 | Semi standard non polar | 33892256 | | Metolazone,2TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2NC1C | 3346.0 | Standard non polar | 33892256 | | Metolazone,2TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2NC1C | 4123.1 | Standard polar | 33892256 | | Metolazone,2TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 2963.9 | Semi standard non polar | 33892256 | | Metolazone,2TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 3329.3 | Standard non polar | 33892256 | | Metolazone,2TMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 3823.9 | Standard polar | 33892256 | | Metolazone,3TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 2995.4 | Semi standard non polar | 33892256 | | Metolazone,3TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 3494.3 | Standard non polar | 33892256 | | Metolazone,3TMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C)[Si](C)(C)C)=C(Cl)C=C2N([Si](C)(C)C)C1C | 3776.4 | Standard polar | 33892256 | | Metolazone,1TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 3343.3 | Semi standard non polar | 33892256 | | Metolazone,1TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 3440.9 | Standard non polar | 33892256 | | Metolazone,1TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 4217.3 | Standard polar | 33892256 | | Metolazone,1TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3248.6 | Semi standard non polar | 33892256 | | Metolazone,1TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3475.5 | Standard non polar | 33892256 | | Metolazone,1TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(N)(=O)=O)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 4481.6 | Standard polar | 33892256 | | Metolazone,2TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 3524.7 | Semi standard non polar | 33892256 | | Metolazone,2TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 3828.2 | Standard non polar | 33892256 | | Metolazone,2TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2NC1C | 4120.2 | Standard polar | 33892256 | | Metolazone,2TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3410.1 | Semi standard non polar | 33892256 | | Metolazone,2TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3814.2 | Standard non polar | 33892256 | | Metolazone,2TBDMS,isomer #2 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3915.4 | Standard polar | 33892256 | | Metolazone,3TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3656.1 | Semi standard non polar | 33892256 | | Metolazone,3TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 4204.7 | Standard non polar | 33892256 | | Metolazone,3TBDMS,isomer #1 | CC1=CC=CC=C1N1C(=O)C2=CC(S(=O)(=O)N([Si](C)(C)C(C)(C)C)[Si](C)(C)C(C)(C)C)=C(Cl)C=C2N([Si](C)(C)C(C)(C)C)C1C | 3906.7 | 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 - Metolazone GC-MS (Non-derivatized) - 70eV, Positive | splash10-0f8j-3597000000-ad3d0d3d7130fb037587 | 2017-09-01 | Wishart Lab | View Spectrum | | Predicted GC-MS | Predicted GC-MS Spectrum - Metolazone 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 - Metolazone LC-ESI-qTof , Positive-QTOF | splash10-0aor-1494000000-aae5f0a5c86e9d0828e2 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Metolazone LC-ESI-qTof , Positive-QTOF | splash10-0bvi-2960000000-1eed022b28a6bb140f60 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Metolazone , positive-QTOF | splash10-0aor-1494000000-aae5f0a5c86e9d0828e2 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Experimental LC-MS/MS | LC-MS/MS Spectrum - Metolazone , positive-QTOF | splash10-0bvi-2960000000-1eed022b28a6bb140f60 | 2017-09-14 | HMDB team, MONA | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 10V, Positive-QTOF | splash10-014i-0009000000-a2ec696223204fee136f | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 20V, Positive-QTOF | splash10-014i-0279000000-4b5932a93a7777aa9293 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 40V, Positive-QTOF | splash10-0zfr-2492000000-e56f6f011b99c12fe90e | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 10V, Negative-QTOF | splash10-03di-0009000000-c969b7886e22277846ed | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 20V, Negative-QTOF | splash10-01t9-8119000000-fb2264110d55cdd31ad4 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 40V, Negative-QTOF | splash10-004i-9110000000-7cb0633c91fcbb9b8881 | 2016-08-03 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 10V, Negative-QTOF | splash10-03di-0009000000-1e4f596ff037e4c41189 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 20V, Negative-QTOF | splash10-03di-2009000000-2d6cdb71493d37e99073 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 40V, Negative-QTOF | splash10-003r-9321000000-3e5878b7c7d017a45529 | 2021-09-23 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 10V, Positive-QTOF | splash10-014i-0009000000-6789fa47262c2e6bd71a | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 20V, Positive-QTOF | splash10-014i-0009000000-eb6980c64348c1d78ad9 | 2021-09-24 | Wishart Lab | View Spectrum | | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Metolazone 40V, Positive-QTOF | splash10-0kai-4892000000-6b2c2e53c19f2fd5f60d | 2021-09-24 | Wishart Lab | View Spectrum |
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