Cilazapril impurity 1 CAS CATO-C4X-29771
| CAS No. | CATO-C4X-29771 |
| Molecular Formula | C22H30N4O6 |
| Molecular Weight | 446.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cilazapril impurity 1 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Cilazapril impurity 1 (CAS CATO-C4X-29771) is a certified pharmaceutical impurity reference standard with the molecular formula C22H30N4O6 and a molecular weight of 446.50 g/mol.
Cilazapril impurity 1 (C22H30N4O6) contains a flavonoid core, 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 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 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.
Physical & Chemical Properties
| Molecular Formula | C22H30N4O6 |
| Molecular Weight | 446.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Cilazapril Standards
Recommended Standards
- Finerenone Impurity 56 (CAS CATO-C4X-288056)
- Z-Dap(Fmoc)-OH (CAS 142855-80-9)
- Finerenone Impurity 142 (CAS CATO-C4X-2880142)
- Z-Phe-Phe-OH (CAS 13122-91-3)
- Amitriptyline EP Impurity F (CAS 1159-82-6)
- Vildagliptin Impurity 93 (CAS 2444-28-2)
- (1S,3S)-Tryptophan EP Impurity I (CAS 40678-46-4)
- 2-{[(4-methylphenyl)methyl]sulfanyl}-4-(piperidin-1-yl)-5,6,7,8-tetrahydroquinazoline (CAS 338963-55-6)
- N-Cyclopropyl-N-[(4-methoxyphenyl)methyl]-4-nitrobenzene-1-sulfonamide (CAS 1285906-89-9)
- 1-(4-Chlorophenyl)cyclopentanecarbonyl chloride (CAS 71501-44-5)
- 2-(Benzo[d][1,3]dioxol-5-yl)-N-(pyridin-3-ylmethyl)ethan-1-amine (CAS 355817-27-5)
- Dioctyl (2-(dimethylamino)-2-oxoethyl)phosphonate (CAS 83631-23-6)
- N-ethyl-3-methoxypyridin-2-amine (CAS 912761-77-4)
- Calcium-Like Peptide 3 (CAS 261969-05-5)
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