Clevidipine butyrate Impurity 11 CAS 138279-32-0
| CAS No. | 138279-32-0 |
| Molecular Formula | C15H13Cl2NO4 |
| Molecular Weight | 342.17 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clevidipine butyrate Impurity 11 (CAS 138279-32-0) is a certified pharmaceutical impurity reference standard with the molecular formula C15H13Cl2NO4 and a molecular weight of 342.17 g/mol.
Based on its molecular formula C15H13Cl2NO4, Clevidipine butyrate Impurity 11 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 342.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 butyrate Impurity 11 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 | C15H13Cl2NO4 |
| Molecular Weight | 342.17 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 |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Clevidipine Standards
- Clevidipine butyrate Impurity 12 (CAS 91854-03-4)
- Clevidipine Impurity 41 (CAS CATO-C4X-101541)
- Clevidipine Impurity 7 (CAS 91854-02-3)
- Clevidipine butyrate Impurity 1 (CAS 105580-45-8)
- Clevidipine Butyrate impurity 17 (CAS 123853-39-4)
- Clevidipine Butyrate Impurity 26 (CAS 1020718-27-7)
- Clevidipine Impurity 24-13C-d3 (CAS CATO-C4X-101524)
- Clevidipine impurity 38 (CAS 68064-72-2)
Recommended Standards
- Mellitic Acid (CAS 517-60-2)
- N-cyclohexyl-3-iodoimidazo[1,2-b]pyridazin-6-amine (CAS 1803587-75-8)
- Methyl 2-(1-(3,4-dichlorobenzyl)-4-hydroxy-2-oxo-1,2-dihydropyridin-3-yl)acetate (CAS 477858-65-4)
- Bromoacetamido-PEG3-C2-acid (CAS 1807534-79-7)
- Trilostane Impurity 10 (CAS CATO-C4X-213710)
- Solifenacin EP impurity G (CAS 740780-79-4)
- Avanafil Impurity 62 (CAS CATO-C4X-111862)
- 2-(4-(Trifluoromethyl)phenoxy)ethan-1-ol (CAS 681508-62-3)
- Iopamidol Impurity 47 (CAS CATO-C4X-145047)
- 5-Chloro-3-methyl-1-(propan-2-yl)-1h-pyrazole (CAS 1480458-98-7)
- 1-(2-Methoxyethyl)piperazine-2,6-dione (CAS 841274-04-2)
- GSK 239512 (CAS 720691-69-0)
- (S)-1-(4-Methoxyphenyl)propan-2-ol (CAS 131029-01-1)
- D-Ala35-Tirzepatide (CAS CATO-CPTD788904)
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