1-[(5-Methyl-isoxazol-3-ylcarbamoyl)-methyl]-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid CAS 1171917-11-5
| CAS No. | 1171917-11-5 |
| Molecular Formula | C12H11N3O5 |
| Molecular Weight | 277.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 1-[(5-Methyl-isoxazol-3-ylcarbamoyl)-methyl]-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 277.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1-[(5-Methyl-isoxazol-3-ylcarbamoyl)-methyl]-6-oxo-1,6-dihydro-pyridine-3-carboxylic acid (CAS 1171917-11-5), molecular formula C12H11N3O5 and molecular weight 277.23 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C12H11N3O5 |
| Molecular Weight | 277.23 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
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Recommended Standards
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- Dibutyl 2-ethylmalonate (CAS 1113-92-4)
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