Ethyl 4-oxo-3-(propionyloxy)-4H-pyran-2-carboxylate CAS 2061980-23-0
| CAS No. | 2061980-23-0 |
| Molecular Formula | C11H12O6 |
| Molecular Weight | 240.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 4-oxo-3-(propionyloxy)-4H-pyran-2-carboxylate (C11H12O6) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO supplies Ethyl 4-oxo-3-(propionyloxy)-4H-pyran-2-carboxylate (CAS 2061980-23-0), a certified reference material (molecular formula C11H12O6, MW 240.21 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C11H12O6 |
| Molecular Weight | 240.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Recommended Standards
- Ethyl 3-hydroxy-4-oxo-4,6,7,9-tetrahydropyrimido[2,1-c][1,4]oxazine-2-carboxylate (CAS 870562-00-8)
- Methacrifos Solution (CAS 30864-28-9)
- Ethyl 2-(difluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 2451256-48-5)
- Methyl 2-((4,6-dimethyl-3-nitropyridin-2-yl)oxy)acetate (CAS 893764-49-3)
- 2-(6-Bromobenzofuran-3-yl)acetic acid (CAS 1784163-41-2)
- tert-butyl (S)-2-((1R,2R)-3-(((1S,2R)-1-(tert-butoxy)-1-phenylpropan-2-yl)amino)-1-methoxy-2-methyl-3-oxopropyl)pyrrolidine-1-carboxylate (CAS CATO-CPTD789008)
- {[cis-4-fluoro-1-(thiophen-2-ylmethyl)pyrrolidin-2-yl]methyl}(methyl)amine (CAS 1820576-31-5)
- 4-(3-Methoxybenzoyl)tetrahydro-2H-pyran-4-carbonitrile (CAS 1403565-01-4)
- 2-Chloro-N-(2,6-dichloro-4-methoxyphenyl)acetamide (CAS 99847-81-1)
- Ammonium 4-(4-oxo-2-thioxo-1,2-dihydroquinazolin-3(4H)-yl)benzenesulfonate (CAS 94276-05-8)
- 8-Hydroxynonanoic acid (CAS 75544-92-2)
- (R)-1-Benzyl-pyrrolidine-3-carboxylic acid (CAS 216311-57-8)
- Zinc(II) succinate (CAS 6228-53-1)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
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