Difenoconazole Impurity 3 CAS CATO-C3D-263029
| CAS No. | CATO-C3D-263029 |
| Molecular Formula | C23H24Cl2N4O5 |
| Molecular Weight | 507.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 507.37 g/mol gives Difenoconazole Impurity 3 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Difenoconazole Impurity 3 (CAS CATO-C3D-263029) is a certified pharmaceutical impurity reference standard with the molecular formula C23H24Cl2N4O5 and a molecular weight of 507.37 g/mol.
Difenoconazole Impurity 3 (C23H24Cl2N4O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C23H24Cl2N4O5 |
| Molecular Weight | 507.37 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Difenoconazole Standards
Recommended Standards
- (2Z)-2-Amino-3-[(E)-({4-[(4-bromo-2-methyl-5-oxo-1-phenyl-2,5-dihydro-1H-pyrazol-3-yl)methoxy]-3-methoxyphenyl}methylidene)amino]but-2-enedinitrile (CAS 497060-05-6)
- Methyl (1R,2S,3S,5S)-3-(4-Iodophenyl)-8-[3-[(methylsulfonyl)oxy]propyl]-8-Azabicyclo[3.2.1]octane-2-carboxylate (CAS 173378-82-0)
- 2,7-Dibromo-9-(tridecan-7-yl)-9H-carbazole (CAS 1256704-63-8)
- N-(2-(6-Amino-4-bromo-2H-benzo[d][1,2,3]triazol-2-yl)-5-(bis(2-methoxyethyl)amino)-4-methoxyphenyl)acetamide (CAS 204499-49-0)
- Rimegepant Impurity 42 (CAS CATO-C4X-248742)
- Octreotide EP Impurity E (CAS 1546983-27-0(Free base))
- Avanafil Impurity 136 (CAS CATO-C4X-1118136)
- 6,7,8,9-Tetrahydro-1H-naphtho[1,2-d]imidazol-2-amine (CAS 107508-45-2)
- 5-(Benzofuran-2-yl)isoxazole-3-carbohydrazide (CAS 5784-29-2)
- DSPE-PEG5-azide (CAS 2112737-73-0)
- Tribenzylphosphine (CAS 7650-89-7)
- 58257-01-5 Bis(4,5-dimethoxy-2-nitrophenyl)diselenide DTXSID90369931 (CAS 58257-01-5)
- Sodium 1,4-dioxo-1,4-bis(pentyloxy)butane-2-sulfonate (CAS 922-80-5)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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