2-Oxo-2,5,7,8-tetrahydro-1h-pyrano[4,3-b]pyridine-3-carboxylic acid CAS 1248899-71-9
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1248899-71-9 |
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Oxo-2,5,7,8-tetrahydro-1h-pyrano[4,3-b]pyridine-3-carboxylic acid (CAS 1248899-71-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H9NO4. Molecular weight: 195.17 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H9NO4 |
| Molecular Weight | 195.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
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- 5-Ethyl-4,5,6,7-tetrahydro-1H-pyrazolo[4,3-c]pyridine-3-carboxylic acid (CAS 1216236-82-6)
- Methyl 5,6,7,8-tetrahydro-4H-pyrazolo[1,5-a][1,4]diazepine-2-carboxylate (CAS 1332113-40-2)
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- 3-(5,6,7,8-Tetrahydro-[1,2,4]triazolo[4,3-a]pyridin-3-yl)propanoic acid (CAS 1502769-06-3)
- 2-(2-Methyl-4,5,6,7-tetrahydro-1,3-benzoxazol-4-yl)acetic acid (CAS 1554107-83-3)
- Ethyl 4,5,6,7-tetrahydro-1H-pyrazolo[3,4-c]pyridine-3-carboxylate (CAS 1630289-84-7)
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Recommended Standards
- 6-Trifluoromethylsulfanyl-pyridazin-3-ylamine (CAS 1246466-65-8)
- 3-(2,6-Difluorophenyl)-1H-pyrazol-4-amine (CAS 1250743-43-1)
- 2-Hydroxy-5-(methylcarbamoyl)benzoic acid (CAS 1243280-47-8)
- (Methyl)triphenylphosphonium Iodide (CAS 2065-66-9)
- Methyl 4-chloro-5,6-dimethylpyrimidine-2-carboxylate (CAS 1514841-14-5)
- 1-(4-Chlorophenyl)-3-(4-(trifluoromethoxy)phenyl)urea (CAS 54730-71-1)
- Rivaroxaban Impurity 185 (CAS CATO-C4X-1090185)
- 3,3-Diethyl-1-vinyl-2-pyrrolidinone (CAS 1186202-47-0)
- Formoterol impurity 146 (CAS CATO-C4X-1525146)
- Heptapeptide-6 (CAS CATO-CPTD788823)
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