7'-Methyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid CAS 2673370-79-9
| CAS No. | 2673370-79-9 |
| Molecular Formula | C12H11NO4 |
| Molecular Weight | 233.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 7'-Methyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
7'-Methyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid (CAS 2673370-79-9) is a high-purity analytical reference standard with the molecular formula C12H11NO4 and a molecular weight of 233.22 g/mol.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 7'-Methyl-5'-oxo-5'H,7'H-spiro[cyclopropane-1,8'-pyrano[4,3-b]pyridine]-2'-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 233.22 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).
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 | C12H11NO4 |
| Molecular Weight | 233.22 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 |
Recommended Standards
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