Clevidipine Impurity 28 CAS CATO-C4X-101528
| CAS No. | CATO-C4X-101528 |
| Molecular Formula | C21H22Cl2N2O7 |
| Molecular Weight | 485.31 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 485.31 g/mol gives Clevidipine Impurity 28 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Clevidipine Impurity 28 (CAS CATO-C4X-101528) is a certified pharmaceutical impurity reference standard with the molecular formula C21H22Cl2N2O7 and a molecular weight of 485.31 g/mol.
The molecular framework of Clevidipine Impurity 28 (C21H22Cl2N2O7) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. 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.
As a certified reference material (CRM), Clevidipine Impurity 28 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.
Physical & Chemical Properties
| Molecular Formula | C21H22Cl2N2O7 |
| Molecular Weight | 485.31 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Clevidipine Standards
- Clevidipine butyrate Impurity 22 (CAS CATO-C4X-101522)
- Clevidipine butyrate Impurity 9 (CAS CATO-C4X-10159)
- Clevidipine-d7 (CAS CATO-C4X-101523)
- Clevidipine-d5 (CAS 1346602-00-3)
- Clevidipine Butyrate (CAS 167221-71-8)
- Clevidipine Butyrate impurity 20 (CAS 2458150-60-0)
- Clevidipine butyrate Impurity 4 (CAS 188649-48-1)
- Clevidipine butyrate Impurity 6 (CAS 175688-79-6)
Recommended Standards
- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-4-[3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carbonyl]piperazine (CAS 338979-25-2)
- 6-(2,6-Dichloro-3,5-dimethoxyphenyl)-N-(2-methyl-6-nitrophenyl)quinazolin-2-amine (CAS 1538605-09-2)
- 2-(4-Chlorophenoxy)-4-(4-chlorophenyl)-6-(3-(trifluoromethyl)phenyl)nicotinonitrile (CAS 303984-56-7)
- 2-([1,1'-Biphenyl]-4-yloxy)-1,4-diamino-3-bromoanthracene-9,10-dione (CAS 89868-51-9)
- Flupentixol Impurity N96 (CAS 2244985-34-8)
- Pipotiazine Impurity 2 (CAS CATO-C4X-33612)
- Delamanid Impurity 8 (CAS CATO-C4X-25148)
- Methyl 2-amino-3,5-dichloro-4-methoxybenzoate (CAS 181434-34-4)
- 4-Hexadecyl-4H-1,2,4-triazole (CAS 188113-56-6)
- 2-Iodothieno[3,2-b]pyridine (CAS 94191-17-0)
- 4-(1h-Pyrazol-3-yl)aniline hydrochloride (CAS 698998-67-3)
- tert-Butyl 2-(aminomethyl)-6,7-dihydropyrazolo[1,5-a]pyrazine-5(4H)-carboxylate (CAS 1251005-43-2)
- (S)-2-(1-Aminoethyl)-4-fluorophenol hydrochloride (CAS 2379311-62-1)
- Tripeptide-10 citrulline (CAS 960531-53-7)
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