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 02:51:45 UTC |
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HMDB ID | HMDB0014830 |
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Secondary Accession Numbers | |
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Metabolite Identification |
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Common Name | Phentolamine |
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Description | Phentolamine is only found in individuals that have used or taken this drug. It is a nonselective alpha-adrenergic antagonist. It is used in the treatment of hypertension and hypertensive emergencies, pheochromocytoma, vasospasm of raynaud disease and frostbite, clonidine withdrawal syndrome, impotence, and peripheral vascular disease (PubChem). Phentolamine produces its therapeutic actions by competitively blocking alpha-adrenergic receptors (primarily excitatory responses of smooth muscle and exocrine glands), leading to a muscle relaxation and a widening of the blood vessels. This widening of the blood vessels results in a lowering of blood pressure. The action of phentolamine on the alpha adrenergic receptors is relatively transient and the blocking effect is incomplete. The drug is more effective in antagonizing responses to circulating epinephrine and/or norepinephrine than in antagonizing responses to mediator released at the adrenergic nerve ending. Phentolamine also stimulates β-adrenergic receptors and produces a positive inotropic and chronotropic effect on the heart and increases cardiac output. |
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Structure | CC1=CC=C(C=C1)N(CC1=NCCN1)C1=CC(O)=CC=C1 InChI=1S/C17H19N3O/c1-13-5-7-14(8-6-13)20(12-17-18-9-10-19-17)15-3-2-4-16(21)11-15/h2-8,11,21H,9-10,12H2,1H3,(H,18,19) |
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Synonyms | Value | Source |
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2-(N-(m-Hydroxyphenyl)-p-toluidinomethyl)imidazoline | ChEBI | Fentolamina | ChEBI | Phentolamine mesylate | ChEBI | Phentolaminum | ChEBI | Regitina | ChEBI | Regitine | ChEBI | Rogitine | ChEBI | Phentolamine mesylic acid | Generator | Regityn | HMDB | Novartis brand OF phentolamine mesylate | HMDB | Paladin brand OF phentolamine mesylate | HMDB | Phentolamine mono hydrochloride | HMDB | Phentolamine mono-hydrochloride | HMDB | Alliance brand OF phentolamine mesylate | HMDB | Mesilate, phentolamine | HMDB | Mesylate, phentolamine | HMDB | Phentolamine methanesulfonate | HMDB | Schering-plough brand OF phentolamine mesylate | HMDB | Fentolamin | HMDB | Methanesulfonate, phentolamine | HMDB | mono-Hydrochloride, phentolamine | HMDB | Phentolamine mesilate | HMDB | Z-Max | HMDB |
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Chemical Formula | C17H19N3O |
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Average Molecular Weight | 281.3523 |
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Monoisotopic Molecular Weight | 281.152812245 |
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IUPAC Name | 3-[(4,5-dihydro-1H-imidazol-2-ylmethyl)(4-methylphenyl)amino]phenol |
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Traditional Name | phentolamine |
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CAS Registry Number | 50-60-2 |
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SMILES | CC1=CC=C(C=C1)N(CC1=NCCN1)C1=CC(O)=CC=C1 |
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InChI Identifier | InChI=1S/C17H19N3O/c1-13-5-7-14(8-6-13)20(12-17-18-9-10-19-17)15-3-2-4-16(21)11-15/h2-8,11,21H,9-10,12H2,1H3,(H,18,19) |
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InChI Key | MRBDMNSDAVCSSF-UHFFFAOYSA-N |
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Chemical Taxonomy |
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Description | Belongs to the class of organic compounds known as alkyldiarylamines. These are tertiary alkylarylamines having two aryl and one alkyl groups attached to the amino group. |
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Kingdom | Organic compounds |
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Super Class | Organic nitrogen compounds |
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Class | Organonitrogen compounds |
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Sub Class | Amines |
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Direct Parent | Alkyldiarylamines |
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Alternative Parents | |
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Substituents | - Alkyldiarylamine
- M-aminophenol
- Aminophenol
- Aminotoluene
- Aniline or substituted anilines
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Toluene
- Monocyclic benzene moiety
- Imidolactam
- Benzenoid
- 2-imidazoline
- Amidine
- Carboxylic acid amidine
- Azacycle
- Organoheterocyclic compound
- Carboximidamide
- Propargyl-type 1,3-dipolar organic compound
- Organic 1,3-dipolar compound
- Organopnictogen compound
- Organic oxygen compound
- Hydrocarbon derivative
- Organooxygen compound
- Aromatic heteromonocyclic compound
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Molecular Framework | Aromatic heteromonocyclic 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 | 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 | 174.5 °C | Not Available | Boiling Point | Not Available | Not Available | Water Solubility | 0.27 g/L | Not Available | LogP | 3.3 | 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 Kovats Retention IndicesUnderivatizedDerivatizedDerivative Name / Structure | SMILES | Kovats RI Value | Column Type | Reference |
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Phentolamine,1TMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2)C2=CC=CC(O[Si](C)(C)C)=C2)C=C1 | 2685.2 | Semi standard non polar | 33892256 | Phentolamine,1TMS,isomer #2 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C)C2=CC=CC(O)=C2)C=C1 | 2726.7 | Semi standard non polar | 33892256 | Phentolamine,2TMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C)C2=CC=CC(O[Si](C)(C)C)=C2)C=C1 | 2749.7 | Semi standard non polar | 33892256 | Phentolamine,2TMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C)C2=CC=CC(O[Si](C)(C)C)=C2)C=C1 | 2791.8 | Standard non polar | 33892256 | Phentolamine,2TMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C)C2=CC=CC(O[Si](C)(C)C)=C2)C=C1 | 3599.6 | Standard polar | 33892256 | Phentolamine,1TBDMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2)C2=CC=CC(O[Si](C)(C)C(C)(C)C)=C2)C=C1 | 2899.7 | Semi standard non polar | 33892256 | Phentolamine,1TBDMS,isomer #2 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C(C)(C)C)C2=CC=CC(O)=C2)C=C1 | 2978.0 | Semi standard non polar | 33892256 | Phentolamine,2TBDMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C(C)(C)C)C2=CC=CC(O[Si](C)(C)C(C)(C)C)=C2)C=C1 | 3156.4 | Semi standard non polar | 33892256 | Phentolamine,2TBDMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C(C)(C)C)C2=CC=CC(O[Si](C)(C)C(C)(C)C)=C2)C=C1 | 3234.2 | Standard non polar | 33892256 | Phentolamine,2TBDMS,isomer #1 | CC1=CC=C(N(CC2=NCCN2[Si](C)(C)C(C)(C)C)C2=CC=CC(O[Si](C)(C)C(C)(C)C)=C2)C=C1 | 3716.8 | Standard 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 - Phentolamine GC-MS (Non-derivatized) - 70eV, Positive | splash10-0002-2950000000-98d994688cae92ea0a0b | 2017-09-01 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Phentolamine GC-MS (1 TMS) - 70eV, Positive | splash10-0072-7953000000-578fe075a00a7a4d02b0 | 2017-10-06 | Wishart Lab | View Spectrum | Predicted GC-MS | Predicted GC-MS Spectrum - Phentolamine 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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Experimental LC-MS/MS | LC-MS/MS Spectrum - Phentolamine , positive-QTOF | splash10-03di-4890000000-37817fa5f0f18f71350d | 2017-09-14 | HMDB team, MONA | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 10V, Positive-QTOF | splash10-001i-0090000000-f5257bc5fc7ab80d6c86 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 20V, Positive-QTOF | splash10-001i-6190000000-51ab45cfce6d6cf7bc94 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 40V, Positive-QTOF | splash10-0znd-7920000000-bcc3e60235210d193abc | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 10V, Negative-QTOF | splash10-001i-0090000000-39ce2b3898232204803d | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 20V, Negative-QTOF | splash10-001i-1190000000-18c4ef9ee29cd0bea9d1 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 40V, Negative-QTOF | splash10-0007-9650000000-7b0c9ea52c5b916cb6c9 | 2016-08-03 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 10V, Positive-QTOF | splash10-001i-0090000000-0db20202647f4f8a9de6 | 2021-10-11 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 20V, Positive-QTOF | splash10-001i-1090000000-83d909204d9b8366fffc | 2021-10-11 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 40V, Positive-QTOF | splash10-008c-7960000000-dcf271875addd4ab9fbd | 2021-10-11 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 10V, Negative-QTOF | splash10-001i-0090000000-18e93f9625f62017f8e6 | 2021-10-11 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 20V, Negative-QTOF | splash10-0002-0930000000-b6e55971aac85aabe446 | 2021-10-11 | Wishart Lab | View Spectrum | Predicted LC-MS/MS | Predicted LC-MS/MS Spectrum - Phentolamine 40V, Negative-QTOF | splash10-006t-0900000000-52d5bc155c2a85191934 | 2021-10-11 | Wishart Lab | View Spectrum |
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