2-(2,4-Difluorophenoxy)-5-(2-methoxy-5-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)-6H-pyrido[1,2-b]pyridazin-6-one CAS 1349264-72-7
| CAS No. | 1349264-72-7 |
| Molecular Formula | C24H16F2N4O4 |
| Molecular Weight | 462.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-(2,4-Difluorophenoxy)-5-(2-methoxy-5-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)-6H-pyrido[1,2-b]pyridazin-6-one (CAS 1349264-72-7), molecular formula C24H16F2N4O4 and molecular weight 462.41 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-(2,4-Difluorophenoxy)-5-(2-methoxy-5-(5-methyl-1,3,4-oxadiazol-2-yl)phenyl)-6H-pyrido[1,2-b]pyridazin-6-one (C24H16F2N4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 462.41 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C24H16F2N4O4 |
| Molecular Weight | 462.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- Thermopsoside;Chrysoeriol-7-O-glucoside (CAS 19993-32-9)
- 164990-17-4 [3-(Dibromomethylidene)-5-(trimethylsilyl)penta-1,4-diyn-1-yl]tri(propan-2-yl)silane DTXSID40565729 (CAS 164990-17-4)
- Homoplantaginin (CAS 17680-84-1)
- N-(5-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3-nitro-6-(4-nitrophenethoxy)pyridin-2-yl)acetamide (CAS 1843217-56-0)
- 1-N-[3-(Diethylamino)propyl]-4-(piperidine-1-sulfonyl)benzene-1,2-diamine (CAS 743444-83-9)
- Allyl Nonanoate (CAS 7493-72-3)
- 4,4,4-Trifluoro-3-(1h-indol-3-yl)butanoic acid (CAS 153233-36-4)
- 2-(1,4-Diazepan-1-yl)-6-fluorobenzo[d]thiazole (CAS 1310239-62-3)
- 1-Ethyl-N-(3-methylbutan-2-yl)-1h-pyrazol-4-amine (CAS 1153210-22-0)
- (5E)-3-Methyl-5-(3-methylbutylidene)-1,3-thiazolidine-2,4-dione (CAS 860610-45-3)
- 6-bromo-1H,4H-pyrrolo[3,2-c]pyrazole-5-carboxylic acid (CAS 1379295-73-4)
- 5-Heptafluoropropoxy-5,6,6,6-tetrafluorohexane-2,4-dione (CAS 261760-03-6)
- Ethyl 2-(3-(4-aminophenyl)cyclohexyl)acetate (CAS 892492-35-2)
- Semaglutide impurity 43 (CAS CATO-C4X-222643)
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