4-Hydroxy-2,3-dihydropyran-6-one CAS 55100-07-7
| CAS No. | 55100-07-7 |
| Molecular Formula | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-2,3-dihydropyran-6-one (CAS 55100-07-7), molecular formula C5H6O3 and molecular weight 114.10 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 4-Hydroxy-2,3-dihydropyran-6-one is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 114.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H6O3 |
| Molecular Weight | 114.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
Related Hydroxy Standards
- 4-Hydroxy-3,4-dihydro-2H-pyran-2-one (CAS 112592-82-2)
- 6-Hydroxy-2,3-dihydropyrimidin-4(1H)-one (CAS 112977-56-7)
- (S)-5-Hydroxy-3-methylfuran-2(5H)-one (CAS 1932127-71-3)
- 2-Hydroxy-2-methylbut-3-ynoic acid (CAS 87295-89-4)
- 3-Hydroxy-4-methylfuran-2(5H)-one (CAS 22438-62-6)
- 3-Hydroxy-5-methyl-2(5H)-furanone (CAS 21053-73-6)
- 4-hydroxy-3-methyl-2,5-dihydrofuran-2-one (CAS 516-09-6)
- 4-Hydroxy-3-Methylbut-2-enolide (CAS 70143-04-3)
Recommended Standards
- 4,5-Dihydrofuran-3-carboxylic Acid (CAS 98021-62-6)
- 4,5-Dihydrofuran-2-carboxylic acid (CAS 444777-27-9)
- 4,5-Dihydro-1H-pyrazole-5-carboxylic acid (CAS 78367-79-0)
- 4-Hydroxy-5-methylfuran-2(5H)-one (CAS 36904-76-4)
- Ethyl 4-formyl-1H-pyrazole-5-carboxylate (CAS 179692-09-2)
- N-Propyl-1H-1,2,4-triazole-1-carboxamide (CAS 93605-67-5)
- 6-Chloro-2-(5-methylthiophen-2-yl)quinoline-4-carboxylic acid (CAS 438216-95-6)
- Methyl 5-Aminopyrimidine-2-carboxylate (CAS 73418-88-9)
- 2-((Cyclobutylmethyl)(ethyl)amino)quinoline-3-carbaldehyde (CAS 898911-84-7)
- Gliquidone Impurity 7 (CAS 1136-01-2)
- tert-Butyl ((5-bromo-1H-pyrrolo[3,2-b]pyridin-2-yl)methyl)(methyl)carbamate (CAS 2354365-71-0)
- N-(4-((4-(furan-2-carbonyl)piperazin-1-yl)sulfonyl)phenyl)acetamide (CAS 441745-96-6)
- 3-methyl-5-(pyrrolidin-2-yl)pyridine (CAS 126741-11-5)
- Glucagon-like peptide 2 (CAS 89750-15-2)
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