| Record Information |
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| Version | 2.0 |
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| Created at | 2022-09-08 09:28:07 UTC |
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| Updated at | 2022-09-08 09:28:07 UTC |
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| NP-MRD ID | NP0265474 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | phthalic anhydride |
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| Description | Phthalic anhydride, also known as 1,3-dioxophthalan or 1,3-phthalandione, belongs to the class of organic compounds known as phthalic anhydrides. Phthalic anhydrides are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione. phthalic anhydride is found in Ligusticum chuanxiong. phthalic anhydride was first documented in 1992 (PMID: 1447476). Phthalic anhydride is an extremely weak basic (essentially neutral) compound (based on its pKa) (PMID: 12269934) (PMID: 21901887) (PMID: 21902644) (PMID: 22222149). |
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| Structure | InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H |
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| Synonyms | | Value | Source |
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| 1,2-Benzenedicarboxylic acid anhydride | ChEBI | | 1,3-Dioxophthalan | ChEBI | | 1,3-Isobenzofurandione | ChEBI | | 1,3-Phthalandione | ChEBI | | O-Phthalic acid anhydride | ChEBI | | Ortho-phthalic acid anhydride | ChEBI | | Phthalsaeureanhydrid | ChEBI | | 1,2-Benzenedicarboxylate anhydride | Generator | | O-Phthalate anhydride | Generator | | Ortho-phthalate anhydride | Generator | | 1,2-Benzenedicarboxylic anhydride | MeSH | | Phthalic acid anhydride | MeSH | | Phthalic anhydride, 14C-labeled CPD | MeSH |
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| Chemical Formula | C8H4O3 |
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| Average Mass | 148.1170 Da |
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| Monoisotopic Mass | 148.01604 Da |
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| IUPAC Name | 1,3-dihydro-2-benzofuran-1,3-dione |
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| Traditional Name | phthalic anhydride |
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| CAS Registry Number | Not Available |
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| SMILES | O=C1OC(=O)C2=CC=CC=C12 |
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| InChI Identifier | InChI=1S/C8H4O3/c9-7-5-3-1-2-4-6(5)8(10)11-7/h1-4H |
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| InChI Key | LGRFSURHDFAFJT-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 phthalic anhydrides. Phthalic anhydrides are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione. |
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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 | Phthalic anhydrides |
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| Alternative Parents | |
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| Substituents | - Phthalic anhydride
- Phthalic_anhydride
- Isobenzofuranone
- Isocoumaran
- Benzenoid
- Dicarboxylic acid or derivatives
- Carboxylic acid anhydride
- Oxacycle
- Carboxylic acid derivative
- Organic oxygen compound
- Organic oxide
- Hydrocarbon derivative
- Organooxygen 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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| General References | - Pakarinen M, Koivuluhta M, Kalkkinen N, Keskinen H, Nordman H, Estlander T, Tupasela O, Jolanki R, Lauerma AI, Pfaffli P, Alenius H: Phthalic anhydride allergy: development and characterization of optimized hapten-carrier conjugates for improved diagnosis. Allergy. 2002 Oct;57(10):894-9. doi: 10.1034/j.1398-9995.2002.23579.x. [PubMed:12269934 ]
- Dearman RJ, Basketter DA, Kimber I: Variable effects of chemical allergens on serum IgE concentration in mice. Preliminary evaluation of a novel approach to the identification of respiratory sensitizers. J Appl Toxicol. 1992 Oct;12(5):317-23. doi: 10.1002/jat.2550120505. [PubMed:1447476 ]
- Zaitseva NV, Ulanova TS, Karnazhitskaia TD, Antip'eva MV, Kislitsina AV: [Determination of phthalic anhydride in ambient air by high performance liquid chromatography]. Gig Sanit. 2011 Jul-Aug;(4):77-80. [PubMed:21901887 ]
- Woelk HJ, Mestl G: Catalyst optimization strategy: selective oxidation of o-xylene to phthalic anhydride. Comb Chem High Throughput Screen. 2012 Feb 1;15(2):136-9. doi: 10.2174/138620712798868383. [PubMed:21902644 ]
- Abd El-Rehim HA, El-Sawy NM, Hegazy el-SA, Soliman el-SA, Elbarbary AM: Improvement of antioxidant activity of chitosan by chemical treatment and ionizing radiation. Int J Biol Macromol. 2012 Mar 1;50(2):403-13. doi: 10.1016/j.ijbiomac.2011.12.021. Epub 2011 Dec 27. [PubMed:22222149 ]
- LOTUS database [Link]
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