| Record Information |
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| Version | 1.0 |
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| Creation date | 2010-04-08 22:11:47 UTC |
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| Update date | 2019-11-26 03:11:30 UTC |
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| Primary ID | FDB015352 |
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| Secondary Accession Numbers | Not Available |
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| Chemical Information |
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| FooDB Name | Geosmin |
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| Description | Implicated in off-flavour of shellfish, freshwater fish, drinking water and some vegetables
Geosmin, which literally translates to "earth smell", is an organic compound with a distinct earthy flavour and aroma, and is responsible for the earthy taste of beets and a contributor to the strong scent that occurs in the air when rain falls after a dry spell of weather (petrichor) or when soil is disturbed. The human nose is extremely sensitive to geosmin and is able to detect it at concentrations as low as 5 parts per trillion. Geosmin is found in corn. |
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| CAS Number | 19700-21-1 |
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| Structure | |
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| Synonyms | | Synonym | Source |
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| 1,10-Dimethyl-9-decalol | HMDB | | 11,12,13-Trinor-5-eudesmanol | HMDB | | 4,8a-dimethyloctahydro-4a(2H)-Naphthalenol | HMDB | | 4,8alpha-Dimethyl-octahydro-naphthalen-4alpha-ol | HMDB | | octahydro-4,8a-Dimethyl-4a(2H)-naphthalenol, 9ci | HMDB | | 4,8a-Dimethyloctahydro-4a(2H)-naphthalenol | biospider | | Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol, 9CI | db_source |
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| Predicted Properties | |
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| Chemical Formula | C12H22O |
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| IUPAC name | 4,8a-dimethyl-decahydronaphthalen-4a-ol |
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| InChI Identifier | InChI=1S/C12H22O/c1-10-6-5-8-11(2)7-3-4-9-12(10,11)13/h10,13H,3-9H2,1-2H3 |
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| InChI Key | JLPUXFOGCDVKGO-UHFFFAOYSA-N |
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| Isomeric SMILES | CC1CCCC2(C)CCCCC12O |
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| Average Molecular Weight | 182.3025 |
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| Monoisotopic Molecular Weight | 182.167065326 |
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| Classification |
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| Description | Belongs to the class of organic compounds known as tertiary alcohols. Tertiary alcohols are compounds in which a hydroxy group, -OH, is attached to a saturated carbon atom R3COH (R not H ). |
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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 | Alcohols and polyols |
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| Direct Parent | Tertiary alcohols |
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| Alternative Parents | |
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| Substituents | - Tertiary alcohol
- Cyclic alcohol
- Hydrocarbon derivative
- Aliphatic homopolycyclic compound
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| Molecular Framework | Aliphatic homopolycyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Disposition | Route of exposure: Source: Biological location: |
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| Process | Naturally occurring process: |
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| Role | Industrial application: Biological role: |
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| Physico-Chemical Properties |
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| Physico-Chemical Properties - Experimental | | Property | Value | Reference |
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| Physical state | Not Available | |
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| Physical Description | Not Available | |
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| Mass Composition | C 79.06%; H 12.16%; O 8.78% | DFC |
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| Melting Point | Not Available | |
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| Boiling Point | Boiling Pt : 270 oC | |
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| Experimental Water Solubility | Not Available | |
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| Experimental logP | Not Available | |
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| Experimental pKa | Not Available | |
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| Isoelectric point | Not Available | |
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| Charge | Not Available | |
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| Optical Rotation | [a]D -16.5 (CHCl3) | DFC |
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| Spectroscopic UV Data | Not Available | |
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| Density | Not Available | |
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| Refractive Index | Not Available | |
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| Spectra |
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| Spectra | |
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| EI-MS/GC-MS | | Type | Description | Splash Key | View |
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| Predicted GC-MS | Geosmin, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | splash10-0udr-1900000000-73211b3533617178344c | Spectrum | | Predicted GC-MS | Geosmin, 1 TMS, Predicted GC-MS Spectrum - 70eV, Positive | splash10-01tj-3490000000-3ed4f0a4110d091adc8e | Spectrum | | Predicted GC-MS | Geosmin, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | Not Available | Spectrum |
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| MS/MS | | Type | Description | Splash Key | View |
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| Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-0159-0900000000-f6d5dbada1d48ea6ad2c | 2015-04-24 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0159-2900000000-ced0e0d8d0358c61d547 | 2015-04-24 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-059l-6900000000-380ea2bfec405ce5f64b | 2015-04-24 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-001i-0900000000-f5e30aaf3cdff12d77a2 | 2015-04-25 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-001i-0900000000-4a166ae95fb9e5300392 | 2015-04-25 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-0gc9-1900000000-08145a39383b88307efd | 2015-04-25 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-014i-0900000000-42496e3dcea777318d2e | 2021-09-22 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0159-2900000000-d36109084630437fa1a0 | 2021-09-22 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0007-9000000000-2131b82b958f6d9e7989 | 2021-09-22 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-001i-0900000000-2d87f53c30e614a48654 | 2021-09-25 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-001i-0900000000-2d87f53c30e614a48654 | 2021-09-25 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-001i-0900000000-ad67dd9ba98bb5660914 | 2021-09-25 | View Spectrum |
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| NMR | Not Available |
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| External Links |
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| ChemSpider ID | 1176 |
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| ChEMBL ID | Not Available |
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| KEGG Compound ID | C16286 |
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| Pubchem Compound ID | 1213 |
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| Pubchem Substance ID | Not Available |
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| ChEBI ID | 46702 |
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| Phenol-Explorer ID | Not Available |
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| DrugBank ID | Not Available |
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| HMDB ID | HMDB36461 |
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| CRC / DFC (Dictionary of Food Compounds) ID | JZR98-B:JZR98-B |
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| EAFUS ID | Not Available |
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| Dr. Duke ID | GEOSMIN |
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| BIGG ID | Not Available |
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| KNApSAcK ID | C00013224 |
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| HET ID | Not Available |
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| Food Biomarker Ontology | Not Available |
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| VMH ID | Not Available |
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| Flavornet ID | 19700-21-1 |
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| GoodScent ID | rw1454691 |
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| SuperScent ID | Not Available |
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| Wikipedia ID | Geosmin |
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| Phenol-Explorer Metabolite ID | Not Available |
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| Duplicate IDS | Not Available |
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| Old DFC IDS | Not Available |
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| Associated Foods |
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| Food | Content Range | Average | Reference |
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| Food | | | Reference |
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| Biological Effects and Interactions |
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| Health Effects / Bioactivities | Not Available |
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| Enzymes | Not Available |
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| Pathways | Not Available |
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| Metabolism | Not Available |
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| Biosynthesis | Not Available |
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| Organoleptic Properties |
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| Flavours | | Flavor | Citations |
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| beet |
- Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
| | earth |
- Arn, H, Acree TE. “Flavornet: A database of aroma compounds based on odor potency in natural products”. Developments in Food Science 40 (1998): 27. doi:10.1016/S0167-4501(98)80029-0
| | fresh |
- The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
| | musty |
- The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
| | earthy |
- The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
| | soil |
- The Good Scents Company (2009). Flavor and fragrance information catalog. <http://www.thegoodscentscompany.com/allprod.html> Accessed 15.10.23.
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| Files |
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| MSDS | Not Available |
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| References |
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| Synthesis Reference | Not Available |
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| General Reference | Not Available |
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| Content Reference | — Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).
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