| Record Information |
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| Version | 2.0 |
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| Created at | 2022-03-17 20:45:45 UTC |
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| Updated at | 2025-02-11 15:44:31 UTC |
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| NP-MRD ID | NP0047775 |
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| Natural Product DOI | https://doi.org/10.57994/1240 |
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| Secondary Accession Numbers | None |
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| Natural Product Identification |
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| Common Name | 3,4-Dihydroxybenzaldehyde |
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| Description | 3,4-Dihydroxybenzaldehyde, also known as protocatechualdehyde or 1,2-dihydroxy-4-formylbenzene, belongs to the class of organic compounds known as hydroxybenzaldehydes. These are organic aromatic compounds containing a benzene ring carrying an aldehyde group and a hydroxyl group. 3,4-Dihydroxybenzaldehyde is an extremely weak basic (essentially neutral) compound (based on its pKa). 3,4-Dihydroxybenzaldehyde is an almond, bitter, and dry tasting compound. Outside of the human body, 3,4-Dihydroxybenzaldehyde is found, on average, in the highest concentration within vinegars and grape wines. 3,4-Dihydroxybenzaldehyde has also been detected, but not quantified in, several different foods, such as orange bell peppers, common wheats, spelts, horseradish tree, and muskmelons. 3,4-Dihydroxybenzaldehyde is found in Actaea racemosa , Amomum subulatum, Amorphophallus konjac, Amorphophallus konjac K.Koch , Anastatica hierochuntica, Artemisia sacrorum, Beta vulgaris, Bletilla formosana, Calophyllum macrocarpum, Centipeda minima, Chrysanthemum morifolium, Cryptotympana sp., Cullen corylifolium, Dryopteris crassirhizoma, Duhaldea cappa, Ganoderma applanatum, Haplopteris anguste-elongata, Hordeum vulgare , Hydnophytum formicarum, Hymenochaete xerantica, Inonotus obliquus , Ipomoea nil, Joannesia princeps, Keiskea japonica, Magnolia crassipes, Menispermum dauricum, Orobanche pycnostachya, Perilla frutescens, Phellinus igniarius , Picea jezoensis, Polyporus umbellatus, Vertebrata lanosa, Populus ciliata, Populus euphratica, Populus simonii, Posidonia oceanica , Pyrrosia petiolosa, Quercus suber, Ranunculus sceleratus, Salsola collina, Salvia chinensis, Salvia divinorum, Salvia miltiorrhiza, Salvia miltiorrihiza, Streptomyces lincolnensis, Tropicoporus linteus, Visnea mocanera, Vitis vinifera and Vittaria anguste-elongata. This could make 3,4-dihydroxybenzaldehyde a potential biomarker for the consumption of these foods. |
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| Structure | InChI=1S/C7H6O3/c8-4-5-1-2-6(9)7(10)3-5/h1-4,9-10H |
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| Synonyms | | Value | Source |
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| 1,2-Dihydroxy-4-formylbenzene | ChEBI | | 3,4-Dihydroxybenzenecarbonal | ChEBI | | 4-Formyl-1,2-benzenediol | ChEBI | | 4-Formyl-1,2-dihydroxybenzene | ChEBI | | Protocatechualdehyde | ChEBI | | Protocatechuic aldehyde | ChEBI | | Protocatechualdehyde, 3H-labeled | MeSH | | Rancinamycin IV | MeSH | | Protocatechualdehyde, formyl-14C-labeled | MeSH |
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| Chemical Formula | C7H6O3 |
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| Average Mass | 138.1207 Da |
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| Monoisotopic Mass | 138.03169 Da |
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| IUPAC Name | 3,4-dihydroxybenzaldehyde |
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| Traditional Name | 3,4-dihydroxybenzaldehyde |
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| CAS Registry Number | 139-85-5 |
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| SMILES | OC1=CC=C(C=O)C=C1O |
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| InChI Identifier | InChI=1S/C7H6O3/c8-4-5-1-2-6(9)7(10)3-5/h1-4,9-10H |
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| InChI Key | IBGBGRVKPALMCQ-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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| HSQC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum | | HMBC NMR | [1H, 13C] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum | | COSY NMR | [1H, 1H] NMR Spectrum (2D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum | | 1D NMR | 13C NMR Spectrum (1D, 201 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum | | 1D NMR | 1H NMR Spectrum (1D, 600 MHz, CD3OD, experimental) | bgnzk@missouri.edu | MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum |
| | Predicted Spectra |
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| | Spectrum Type | Description | Depositor ID | Depositor Organization | Depositor | Deposition Date | View |
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| | Chemical Shift Submissions |
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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, 600, CD3OD, simulated) | bgnzk@missouri.edu | Sumner Lab, MU Metabolomics Center, University of Missouri, Columbia. MO, USA | Dr. Bharat Goel | 2024-05-04 | View Spectrum |
| | 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 hydroxybenzaldehydes. These are organic aromatic compounds containing a benzene ring carrying an aldehyde group and a hydroxyl group. |
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| Kingdom | Organic compounds |
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| Super Class | Organic oxygen compounds |
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| Class | Organooxygen compounds |
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| Sub Class | Carbonyl compounds |
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| Direct Parent | Hydroxybenzaldehydes |
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| Alternative Parents | |
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| Substituents | - Hydroxybenzaldehyde
- Catechol
- Benzoyl
- 1-hydroxy-4-unsubstituted benzenoid
- 1-hydroxy-2-unsubstituted benzenoid
- Phenol
- Benzenoid
- Monocyclic benzene moiety
- Organic oxide
- Hydrocarbon derivative
- Aromatic homomonocyclic compound
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| Molecular Framework | Aromatic homomonocyclic 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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