(Z)-1-(pyrazin-2-yl)ethan-1-one O-(2,6-difluorobenzoyl) oxime CAS 866050-55-7
| CAS No. | 866050-55-7 |
| Molecular Formula | C13H9F2N3O2 |
| Molecular Weight | 277.23 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 (Z)-1-(pyrazin-2-yl)ethan-1-one O-(2,6-difluorobenzoyl) oxime.
CATO supplies (Z)-1-(pyrazin-2-yl)ethan-1-one O-(2,6-difluorobenzoyl) oxime (CAS 866050-55-7), a certified reference material (molecular formula C13H9F2N3O2, MW 277.23 g/mol) for analytical method development and quality control.
(Z)-1-(pyrazin-2-yl)ethan-1-one O-(2,6-difluorobenzoyl) oxime (C13H9F2N3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, 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).
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.
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 | C13H9F2N3O2 |
| Molecular Weight | 277.23 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Z Standards
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Recommended Standards
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- 2-(4-Ethynylphenyl)pyridine (CAS 871012-92-9)
- Furan-2-yl(4-(pyridin-2-yloxy)piperidin-1-yl)methanone (CAS 1428380-02-2)
- 3-amino-2-(4-fluorobenzyl)propan-1-ol (CAS 1017371-19-5)
- 2-amino-5-nitroisonicotinic acid (CAS 84487-09-2)
- (3-Chloro-[2,4'-bipyridin]-5-yl)boronic acid (CAS 2225155-43-9)
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