| Record Information |
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| Version | 2.0 |
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| Created at | 2022-09-10 05:28:57 UTC |
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| Updated at | 2022-09-10 05:28:58 UTC |
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| NP-MRD ID | NP0296098 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | phenolphthalein |
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| Description | Phenolphthalein, also known as modane or laxatone, belongs to the class of organic compounds known as benzofuranones. These are organic compounds containing a benzene ring fused to a furanone. Phenolphthalein is a drug which is used for over a century as a laxative. Phenolphthalein is an extremely weak basic (essentially neutral) compound (based on its pKa). Phenolphthalein is formally rated as a possible carcinogen (by IARC 2B) and is also a potentially toxic compound. Phenolphthalein adopts four different states in aqueous solution: Under strongly acidic conditions, it exists in protonated form (HIn+), providing an orange coloration. Phenolphthalein can be synthesized by condensation of phthalic anhydride with two equivalents of phenol under acidic conditions (hence the name). phenolphthalein is found in Caragana conferta. It was discovered in 1871 by Adolf von Baeyer. |
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| Structure | OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1 InChI=1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H |
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| Synonyms | | Value | Source |
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| 3,3-Bis(4-hydroxyphenyl)phthalide | Kegg | | Modane | Kegg | | Laxatone | MeSH | | Feen-a-mint | MeSH | | Laxettes | MeSH | | Ex-lax | MeSH | | Ap-la-day | MeSH | | Thalinol | MeSH | | Mentholatum brand OF phenolphthalein | MeSH | | Novartis brand OF phenolphthalein | MeSH | | Schering-plough brand OF phenolphthalein | MeSH | | manesco Brand OF phenolphthalein | MeSH | | Key brand OF phenolphthalein | MeSH | | Thompson brand OF phenolphthalein | MeSH |
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| Chemical Formula | C20H14O4 |
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| Average Mass | 318.3228 Da |
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| Monoisotopic Mass | 318.08921 Da |
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| IUPAC Name | 3,3-bis(4-hydroxyphenyl)-1,3-dihydro-2-benzofuran-1-one |
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| Traditional Name | phenolphthalein |
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| CAS Registry Number | Not Available |
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| SMILES | OC1=CC=C(C=C1)C1(OC(=O)C2=CC=CC=C12)C1=CC=C(O)C=C1 |
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| InChI Identifier | InChI=1S/C20H14O4/c21-15-9-5-13(6-10-15)20(14-7-11-16(22)12-8-14)18-4-2-1-3-17(18)19(23)24-20/h1-12,21-22H |
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| InChI Key | KJFMBFZCATUALV-UHFFFAOYSA-N |
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| Experimental Spectra |
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| | Spectrum Type | Description | Depositor Email | Depositor Organization | Depositor | Deposition Date | View |
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| 1D NMR | 1H NMR Spectrum (1D, 90 MHz, DMSO-d6, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 15.09 MHz, DMSO-d6, experimental) | Wishart Lab | Wishart Lab | David Wishart | 2021-06-20 | View Spectrum |
| | 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 benzofuranones. These are organic compounds containing a benzene ring fused to a furanone. |
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| Kingdom | Organic compounds |
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| Super Class | Organoheterocyclic compounds |
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| Class | Benzofurans |
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| Sub Class | Benzofuranones |
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| Direct Parent | Benzofuranones |
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| Alternative Parents | |
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| Substituents | - Benzofuranone
- Phthalide
- Isobenzofuranone
- Isocoumaran
- Phenol
- 1-hydroxy-2-unsubstituted benzenoid
- Benzenoid
- Monocyclic benzene moiety
- Lactone
- Carboxylic acid ester
- Oxacycle
- Monocarboxylic acid or derivatives
- Carboxylic acid derivative
- Hydrocarbon derivative
- Organooxygen compound
- Organic oxide
- Organic oxygen compound
- Aromatic heteropolycyclic compound
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| Molecular Framework | Aromatic heteropolycyclic 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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