| Record Information |
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| Version | 1.0 |
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| Creation date | 2010-04-08 22:07:55 UTC |
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| Update date | 2025-11-18 23:06:52 UTC |
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| Primary ID | FDB008099 |
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| Secondary Accession Numbers | Not Available |
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| Chemical Information |
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| FooDB Name | (R)-Acetoin |
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| Description | Constituent of butter and produced by many microorganisms [DFC]
Acetoin is a colorless or pale yellow to green yellow liquid with a pleasant, buttery odor. Acetoin is used as an external energy store by a number of fermentive bacteria. Acetoin, along with diacetyl, is one of the compounds giving butter its characteristic flavor. Acetoin is used as a food flavoring (in baked goods) and a fragrance. It can be found in apples, butter, yogurt, asparagus, black currants, blackberry, wheat, broccoli, brussels sprouts, cantaloupe. [Wikipedia]. |
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| CAS Number | 53584-56-8 |
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| Structure | |
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| Synonyms | | Synonym | Source |
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| (R)-2-Acetoin | ChEBI | | (R)-3-Hydroxy-2-butanone | ChEBI | | (R)-3-Hydroxybutan-2-one | ChEBI | | (R)-Dimethylketol | ChEBI | | (R)-Acetoin | manual | | 3-Hydroxybutanone | manual | | Acetyl methyl carbinol | manual |
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| Predicted Properties | |
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| Chemical Formula | C4H8O2 |
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| IUPAC name | (3R)-3-hydroxybutan-2-one |
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| InChI Identifier | InChI=1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3/t3-/m1/s1 |
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| InChI Key | ROWKJAVDOGWPAT-GSVOUGTGSA-N |
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| Isomeric SMILES | C[C@@H](O)C(C)=O |
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| Average Molecular Weight | 88.1051 |
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| Monoisotopic Molecular Weight | 88.0524295 |
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| Classification |
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| Description | Belongs to the class of organic compounds known as acyloins. These are organic compounds containing an alpha hydroxy ketone. Acyloins are formally derived from reductive coupling of carboxylic acyl groups. |
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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 | Acyloins |
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| Alternative Parents | |
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| Substituents | - Acyloin
- Alpha-hydroxy ketone
- Secondary alcohol
- Ketone
- Organic oxide
- Hydrocarbon derivative
- Alcohol
- Aliphatic acyclic compound
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| Molecular Framework | Aliphatic acyclic compounds |
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| External Descriptors | |
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| Ontology |
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| Ontology | No ontology term |
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| Physico-Chemical Properties |
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| Physico-Chemical Properties - Experimental | | Property | Value | Reference |
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| Physical state | liquid | |
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| Physical Description | Not Available | |
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| Mass Composition | C 54.53%; H 9.15%; O 36.32% | DFC |
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| Melting Point | 15 oC | |
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| Boiling Point | Bp20 49.2° | DFC |
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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]20D -58 (neat) | 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 | (R)-Acetoin, non-derivatized, Predicted GC-MS Spectrum - 70eV, Positive | splash10-0006-9000000000-15ed087808debd745ef9 | 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 | splash10-000i-9000000000-ebb7996f3f82cc069f12 | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0079-9000000000-4043204b04ec3b5823ff | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0uk9-9000000000-1e66901c3375433b1693 | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-000i-9000000000-9d60c7f29d91e72ce0bc | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-000i-9000000000-35eb749498333af99296 | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-00xr-9000000000-ce5e7eaa33d4f9d4fa86 | 2016-08-03 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Positive | splash10-0fk9-9000000000-c5e178ac425b271910a2 | 2021-10-21 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Positive | splash10-0006-9000000000-f43d429661b310e7148a | 2021-10-21 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Positive | splash10-0006-9000000000-160fee6a321df2fa7b05 | 2021-10-21 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 10V, Negative | splash10-000i-9000000000-4b3590a18d40d4d58a01 | 2021-10-21 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 20V, Negative | splash10-000i-9000000000-bc260446b65990487a67 | 2021-10-21 | View Spectrum | | Predicted MS/MS | Predicted LC-MS/MS Spectrum - 40V, Negative | splash10-0006-9000000000-0c841ea6edf8e31c3df0 | 2021-10-21 | View Spectrum |
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| NMR | Not Available |
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| External Links |
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| ChemSpider ID | 388445 |
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| ChEMBL ID | Not Available |
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| KEGG Compound ID | C00810 |
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| Pubchem Compound ID | 439314 |
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| Pubchem Substance ID | Not Available |
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| ChEBI ID | 15686 |
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| Phenol-Explorer ID | Not Available |
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| DrugBank ID | Not Available |
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| HMDB ID | Not Available |
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| CRC / DFC (Dictionary of Food Compounds) ID | GZG79-M:DBV24-W |
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| EAFUS ID | Not Available |
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| Dr. Duke ID | Not Available |
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| BIGG ID | Not Available |
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| KNApSAcK ID | Not Available |
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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 | Not Available |
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| GoodScent ID | Not Available |
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| SuperScent ID | Not Available |
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| Wikipedia ID | Acetoin |
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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 | Not Available |
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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 | |
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