| Record Information |
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| Version | 2.0 |
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| Created at | 2022-09-08 08:34:20 UTC |
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| Updated at | 2022-09-08 08:34:20 UTC |
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| NP-MRD ID | NP0264814 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | antipyrine |
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| Description | Antipyrine, also known as phenazone or fenazona, belongs to the class of organic compounds known as phenylpyrazoles. Phenylpyrazoles are compounds containing a phenylpyrazole skeleton, which consists of a pyrazole bound to a phenyl group. Antipyrine is an extremely weak basic (essentially neutral) compound (based on its pKa). In humans, antipyrine is involved in antipyrine action pathway. antipyrine is found in Homo sapiens. antipyrine was first documented in 2014 (PMID: 24345239). A pyrazolone derivative that is 1,2-dihydropyrazol-3-one substituted with methyl groups at C-1 and C-5 and with a phenyl group at N-2 (PMID: 25038548) (PMID: 25435228) (PMID: 25631541) (PMID: 26703262). |
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| Structure | CN1N(C(=O)C=C1C)C1=CC=CC=C1 InChI=1S/C11H12N2O/c1-9-8-11(14)13(12(9)2)10-6-4-3-5-7-10/h3-8H,1-2H3 |
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| Synonyms | | Value | Source |
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| 1,2-Dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one | ChEBI | | 2,3-Dimethyl-1-phenyl-5-pyrazolone | ChEBI | | Fenazona | ChEBI | | Phenazone | ChEBI | | Analgesine | HMDB | | Anodynin | HMDB | | Anodynine | HMDB | | Antipirin | HMDB | | Antipyrin | HMDB | | Antipyrinum | HMDB | | Azophen | HMDB | | Azophenum | HMDB | | Fenazone | HMDB | | Phenozone | HMDB | | Pyramidone | HMDB |
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| Chemical Formula | C11H12N2O |
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| Average Mass | 188.2258 Da |
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| Monoisotopic Mass | 188.09496 Da |
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| IUPAC Name | 1,5-dimethyl-2-phenyl-2,3-dihydro-1H-pyrazol-3-one |
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| Traditional Name | antipyrine |
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| CAS Registry Number | Not Available |
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| SMILES | CN1N(C(=O)C=C1C)C1=CC=CC=C1 |
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| InChI Identifier | InChI=1S/C11H12N2O/c1-9-8-11(14)13(12(9)2)10-6-4-3-5-7-10/h3-8H,1-2H3 |
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| InChI Key | VEQOALNAAJBPNY-UHFFFAOYSA-N |
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| Experimental Spectra |
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| Not Available | | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 13C NMR Spectrum (1D, 25 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 100 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 252 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 1000 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 50 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 200 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 75 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 300 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 101 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 400 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 126 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 500 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 151 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 176 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 700 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 800 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 226 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 900 MHz, H2O, predicted) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | Chemical Shift Submissions |
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| Not Available | | Species |
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| Species of Origin | |
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| Chemical Taxonomy |
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| Description | Belongs to the class of organic compounds known as phenylpyrazoles. Phenylpyrazoles are compounds containing a phenylpyrazole skeleton, which consists of a pyrazole bound to a phenyl group. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Azoles |
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| Sub Class | Pyrazoles |
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| Direct Parent | Phenylpyrazoles |
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| Alternative Parents | |
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| Substituents | - Phenylpyrazole
- Monocyclic benzene moiety
- Pyrazolinone
- Benzenoid
- Heteroaromatic compound
- Vinylogous amide
- Lactam
- Azacycle
- Organic nitrogen compound
- Hydrocarbon derivative
- Organic oxide
- Organopnictogen compound
- Organooxygen compound
- Organonitrogen compound
- Organic oxygen compound
- Aromatic heteromonocyclic compound
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| Molecular Framework | Aromatic heteromonocyclic compounds |
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| External Descriptors | |
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| Physical Properties |
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| State | Not Available |
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| Experimental Properties | | Property | Value | Reference |
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| Melting Point | Not Available | Not Available | | Boiling Point | Not Available | Not Available | | Water Solubility | Not Available | Not Available | | LogP | Not Available | Not Available |
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| Predicted Properties | |
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| General References | - Espejo A, Aguinaco A, Amat AM, Beltran FJ: Some ozone advanced oxidation processes to improve the biological removal of selected pharmaceutical contaminants from urban wastewater. J Environ Sci Health A Tox Hazard Subst Environ Eng. 2014;49(4):410-21. doi: 10.1080/10934529.2014.854652. [PubMed:24345239 ]
- Miao HF, Cao M, Xu DY, Ren HY, Zhao MX, Huang ZX, Ruan WQ: Degradation of phenazone in aqueous solution with ozone: influencing factors and degradation pathways. Chemosphere. 2015 Jan;119:326-333. doi: 10.1016/j.chemosphere.2014.06.082. Epub 2014 Jul 17. [PubMed:25038548 ]
- Bulatov A, Medinskaia K, Aseeva D, Garmonov S, Moskvin L: Determination of antipyrine in saliva using the dispersive liquid-liquid microextraction based on a stepwise injection system. Talanta. 2015 Feb;133:66-70. doi: 10.1016/j.talanta.2014.05.064. Epub 2014 Jul 8. [PubMed:25435228 ]
- Karinen R, Hoiseth G, Svendsen KO, Rogde S, Vindenes V: A fatal intoxication with phenazone (antipyrine). Forensic Sci Int. 2015 Mar;248:e13-5. doi: 10.1016/j.forsciint.2015.01.001. Epub 2015 Jan 8. [PubMed:25631541 ]
- Medinskaia K, Vakh C, Aseeva D, Andruch V, Moskvin L, Bulatov A: A fully automated effervescence assisted dispersive liquid-liquid microextraction based on a stepwise injection system. Determination of antipyrine in saliva samples. Anal Chim Acta. 2016 Jan 1;902:129-134. doi: 10.1016/j.aca.2015.11.017. Epub 2015 Nov 27. [PubMed:26703262 ]
- LOTUS database [Link]
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