8-Phenyl-4,5-dihydro[1,2,5]oxadiazolo[3,4-f]cinnolin-3-ium-3-olate CAS 257932-08-4
| CAS No. | 257932-08-4 |
| Molecular Formula | C14H10N4O2 |
| Molecular Weight | 266.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Phenyl-4,5-dihydro[1,2,5]oxadiazolo[3,4-f]cinnolin-3-ium-3-olate (CAS 257932-08-4) is a high-purity analytical reference standard with the molecular formula C14H10N4O2 and a molecular weight of 266.25 g/mol.
The molecular framework of 8-Phenyl-4,5-dihydro[1,2,5]oxadiazolo[3,4-f]cinnolin-3-ium-3-olate (C14H10N4O2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C14H10N4O2 |
| Molecular Weight | 266.25 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
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Recommended Standards
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- (9H-fluoren-9-yl)methyl 2,4-dichloro-5,8-dihydropyrido[3,4-d]pyrimidine-7(6H)-carboxylate (CAS 916420-36-5)
- 1-(Bromomethyl)pyrrolidin-2-one (CAS 93287-12-8)
- n-(5-Fluoropyridin-2-yl)-1,3-thiazole-4-carboxamide (CAS 1498694-03-3)
- 2-(4-Chlorophenyl)-1H-imidazole-5-carbaldehyde (CAS 279251-15-9)
- 3-Butyn-2-ol (CAS 2028-63-9)
- N,N'-(1,3-Phenylenebis(methylene))bis(furan-2-carboxamide) (CAS 415694-42-7)
- 7-Nitro-2-phenyl-1H-indole-5-carboxylic acid (CAS 1120334-31-7)
- 8-Fluoroquinolin-3-amine dihydrochloride (CAS 1266226-18-9)
- 3-Phenyl-5-(propan-2-ylidene)-2-thioxoimidazolidin-4-one (CAS 61632-47-1)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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