4-(5-(Pyridin-4-yl)-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-amine CAS 521301-40-6
| CAS No. | 521301-40-6 |
| Molecular Formula | C9H6N6O2 |
| Molecular Weight | 230.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
4-(5-(Pyridin-4-yl)-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-amine (CAS 521301-40-6), molecular formula C9H6N6O2 and molecular weight 230.18 g/mol, is a CATO reference standard with documented purity and traceability.
4-(5-(Pyridin-4-yl)-1,2,4-oxadiazol-3-yl)-1,2,5-oxadiazol-3-amine (C9H6N6O2) contains an amino-acid-derived structure, 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).
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 | C9H6N6O2 |
| Molecular Weight | 230.18 g/mol |
| Appearance | Pale yellow to 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 6 |
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Recommended Standards
- 3-Cyclopropyl-5-(trifluoromethoxy)benzaldehyde (CAS 2444272-12-0)
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- 4-Nitropyridin-3-amine (CAS 13505-02-7)
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- 6-Ethyl-2,3-dihydro-1H-benzo[d]imidazo[1,2-a]imidazole (CAS 176174-14-4)
- 4-(Trifluoromethyl)pyridine-3-acetic acid (CAS 1227607-93-3)
- Levonorgestrel EP Impurity A (CAS 1260525-53-8)
- 3-Bromo-6-methyl-5-nitro-1H-pyridin-2-one (CAS 874493-25-1)
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