7',7'-Dimethyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid CAS 2673372-32-0
| CAS No. | 2673372-32-0 |
| Molecular Formula | C13H13NO4 |
| Molecular Weight | 247.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
7',7'-Dimethyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid (CAS 2673372-32-0), molecular formula C13H13NO4 and molecular weight 247.25 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 7',7'-Dimethyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid (C13H13NO4) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C13H13NO4 |
| Molecular Weight | 247.25 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Nitrogen Atoms | 1 |
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