Clevidipine Impurity 33 CAS CATO-C4X-101533
| CAS No. | CATO-C4X-101533 |
| Molecular Formula | C20H21Cl2NO6 |
| Molecular Weight | 442.29 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Clevidipine Impurity 33 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 442.29 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Clevidipine Impurity 33 (CAS CATO-C4X-101533, C20H21Cl2NO6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 33 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 | C20H21Cl2NO6 |
| Molecular Weight | 442.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Clevidipine Standards
- Clevidipine Impurity 39 (CAS CATO-C4X-101539)
- Clevidipine butyrate Impurity 6 (CAS 175688-79-6)
- Clevidipine butyrate Impurity 4 (CAS 188649-48-1)
- Clevidipine Butyrate (CAS 167221-71-8)
- Clevidipine Butyrate impurity 20 (CAS 2458150-60-0)
- Clevidipine butyrate Impurity 21 (CAS 175688-78-5)
- Clevidipine-d5 (CAS 1346602-00-3)
- Clevidipine-d7 (CAS CATO-C4X-101523)
Recommended Standards
- 7-Nitro-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-tosyl-1H-indole (CAS 2091135-03-2)
- 2-(5-Bromo-2-methoxybenzylidene)-6-phenyl-2H-thiazolo[3,2-b][1,2,4]triazine-3,7-dione (CAS 606955-75-3)
- 6-Bromo-4-(3,4,5-trimethoxyphenyl)-3,4-dihydrobenzo[h]quinolin-2(1H)-one (CAS 297157-87-0)
- 2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,5-dichlorophenyl)acetic acid (CAS 369403-32-7)
- Trimetazidine Impurity 20 (CAS 573-11-5)
- Cytarabine EP Impurity F (CAS 32830-01-6)
- Dacarbazine EP Impurity A (CAS 4656-86-4)
- (3aS,4S,6R,6aR)-6-(6-Amino-2-chloro-9H-purin-9-yl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carboxylic acid (CAS 72209-19-9)
- 4-(Benzyloxy)-3-oxobutanoic Acid (CAS 67354-37-4)
- N-(3-fluorobenzyl)-1-methylpyrrolidin-3-amine (CAS 1250880-50-2)
- 1-(2-Bromo-5-chlorophenyl)-4-methylpiperazine (CAS 1261940-25-3)
- (E)-N'-(3-(trifluoromethyl)benzylidene)thiophene-2-carbohydrazide (CAS 329698-66-0)
- Tert-butyl (3-oxo-4-(pyridin-2-yl)butan-2-yl)carbamate (CAS 1259520-73-4)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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