2,2-Dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylic acid CAS 80866-93-9
| CAS No. | 80866-93-9 |
| Molecular Formula | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2,2-Dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 170.16 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).
CATO supplies 2,2-Dimethyl-4-oxo-3,4-dihydro-2H-pyran-6-carboxylic acid (CAS 80866-93-9), a certified reference material (molecular formula C8H10O4, MW 170.16 g/mol) for analytical method development and quality control.
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 | C8H10O4 |
| Molecular Weight | 170.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
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- Methyl 8-cyano-4-oxo-1,4-dihydroquinoline-2-carboxylate (CAS 7101-83-9)
- 6-Methoxy-2-(trifluoromethyl)pyridine-3-acetic acid (CAS 1227581-28-3)
- 4-Cyanopyridine-2-carboxylic Acid (CAS 640296-19-1)
- tert-Butyl (6-benzyl-2-oxa-6-azaspiro[3.4]octan-8-yl)carbamate (CAS 1422496-62-5)
- 5-(P-tolyl)isoxazole-4-carboxylic acid (CAS 887408-19-7)
- 2-(Pyridin-2-yl)acetyl chloride hydrochloride (CAS 39640-61-4)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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