3-Propyl-6-(pyridin-3-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid CAS 953716-89-7
| CAS No. | 953716-89-7 |
| Molecular Formula | C15H13N3O3 |
| Molecular Weight | 283.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Propyl-6-(pyridin-3-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 953716-89-7), a certified reference material (molecular formula C15H13N3O3, MW 283.28 g/mol) for analytical method development and quality control.
3-Propyl-6-(pyridin-3-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (C15H13N3O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C15H13N3O3 |
| Molecular Weight | 283.28 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Propyl Standards
- 3-Propyl-6-(pyridin-4-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 953739-60-1)
- Ethyl 4-(pyridin-4-ylamino)pyrrolo[2,1-f][1,2,4]triazine-6-carboxylate (CAS 1623463-98-8)
- 3-(Pyridin-3-yloxy)-5-(trifluoromethyl)picolinamide (CAS 338759-23-2)
- 6-Methyl-2-(pyridin-4-yl)quinoline-4-carbonyl chloride (CAS 1203209-31-7)
- 2-{4-[2-(pyridin-4-yl)ethyl]piperazin-1-yl}aniline (CAS 1179164-76-1)
- 2-Ethyl-4-(pyridin-3-yl)phthalazin-1(2H)-one (CAS 137381-66-9)
- 2,7-Di(pyridin-4-yl)naphthalene (CAS 1219814-29-5)
- Benzyl 3-(pyridin-3-yl)pyrrolidine-1-carboxylate (CAS 1225218-97-2)
Recommended Standards
- 3-(Propan-2-yl)-6-(pyridin-4-yl)-[1,2]oxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 954278-10-5)
- 3-(propan-2-yl)-6-(pyridin-3-yl)pyrido[3,2-d][1,2]oxazole-4-carboxylic acid (CAS 953748-25-9)
- 4-((3-Oxo-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)methyl)benzoic acid (CAS 857492-98-9)
- 3-(4-Methylbenzyl)-2-oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 951547-65-2)
- 1-{[3-(trifluoromethyl)phenyl]methyl}-1h-1,3-benzodiazol-2-amine (CAS 1038711-02-2)
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