Isoxazolo[5,4-c]pyridine CAS 64761-69-9
| CAS No. | 64761-69-9 |
| Molecular Formula | C6H4N2O |
| Molecular Weight | 120.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Isoxazolo[5,4-c]pyridine.
Isoxazolo[5,4-c]pyridine (CAS 64761-69-9) is a high-purity analytical reference standard with the molecular formula C6H4N2O and a molecular weight of 120.11 g/mol.
Structurally, Isoxazolo[5,4-c]pyridine (C6H4N2O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 120.11 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H4N2O |
| Molecular Weight | 120.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
Related Isoxazolo Standards
- Isoxazolo[4,3-b]pyridine (CAS 173894-73-0)
- Isoxazolo[4,5-b]pyridine (CAS 76807-98-2)
- Isoxazolo[5,4-b]pyridine (CAS 272-03-7)
- Isoxazolo[3,4-d]pyrimidine (CAS 28648-19-3)
- Isoxazolo[4,3-d]pyrimidine (CAS 272-58-2)
- Isoxazolo[5,4-d]pyrimidine (CAS 272-04-8)
- Isoxazolo[4,5-b]pyridin-3-amine (CAS 114080-93-2)
- Isoxazolo[5,4-c]pyridin-3-amine (CAS 114080-94-3)
Recommended Standards
- Oxazolo[4,5-b]pyridine (CAS 273-97-2)
- Oxazolo[4,5-c]pyridine (CAS 273-56-3)
- Imidazo[5,1-c][1,2,4]triazine (CAS 52965-39-6)
- Oxazolo[5,4-b]pyridine (CAS 273-62-1)
- 4-Chloro-6-fluoronicotinaldehyde (CAS 1256824-38-0)
- 1-(Bromoethynyl)-4-chlorobenzene (CAS 33491-03-1)
- (R)-3-(Cbz-amino)-2-methylpropanoic Acid (CAS 132696-46-9)
- Avibactam Impurity 150 (CAS CATO-C4X-1348150)
- 5-(4-Fluorophenyl)pyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 932177-92-9)
- 3a,6,7,7a-Tetrahydro-5-(hydroxymethyl)-2-methyl-(3aR,5R,6S,7R,7aR)-5H-pyrano[3,2-d]thiazole-6,7-diol (CAS 179030-22-9)
- 3-(1-Methyl-3-(2-methylbutyl)pyrrolidin-3-yl)phenol (CAS 38906-47-7)
- 2-(Cyclohexylmethyl)-4-hydroxy-N,N-dimethylbenzamide (CAS 1243408-53-8)
- 2-Phenoxy-N-(pyridin-3-yl)acetamide (CAS 25288-46-4)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
Why CATO?
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