Clevidipine butyrate Impurity 4 CAS 188649-48-1
| CAS No. | 188649-48-1 |
| Molecular Formula | C21H21Cl2NO6 |
| Molecular Weight | 454.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Clevidipine butyrate Impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Clevidipine butyrate Impurity 4 (CAS 188649-48-1) is a certified pharmaceutical impurity reference standard with the molecular formula C21H21Cl2NO6 and a molecular weight of 454.30 g/mol.
Clevidipine butyrate Impurity 4 (C21H21Cl2NO6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C21H21Cl2NO6 |
| Molecular Weight | 454.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2010 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Clevidipine Standards
- Clevidipine Butyrate (CAS 167221-71-8)
- Clevidipine Butyrate impurity 20 (CAS 2458150-60-0)
- Clevidipine butyrate Impurity 6 (CAS 175688-79-6)
- Clevidipine-d5 (CAS 1346602-00-3)
- Clevidipine-d7 (CAS CATO-C4X-101523)
- Clevidipine Impurity 33 (CAS CATO-C4X-101533)
- Clevidipine Impurity 39 (CAS CATO-C4X-101539)
- Clevidipine butyrate Impurity 9 (CAS CATO-C4X-10159)
Recommended Standards
- N'-(4-fluorobenzoyl)-2,5-bis(2,2,2-trifluoroethoxy)benzohydrazide (CAS 477872-39-2)
- [[5-bromo-6-methoxy-1-[(4-oxo-2-thioxo-5-thiazolidinylidene)methyl]-2-naphthalenyl]oxy]-acetic Acid (CAS 123021-35-2)
- 3,6-Diamino-n-(4-bromophenyl)-5-cyano-4-(furan-2-yl)thieno[2,3-b]pyridine-2-carboxamide (CAS 332046-11-4)
- 1'-tert-Butyl 6-methyl 8-bromo-4-oxospiro[chroman-2,4'-piperidine]-1',6-dicarboxylate (CAS 1416438-83-9)
- Vonoprazan Fumarate impurity 124 (CAS CATO-C4X-1020124)
- Etravirine Impurity 3 (CAS CATO-C4X-13563)
- Paliperidone Impurity 99 (CAS CATO-C4X-172499)
- 5-(tert-Butyl) 1-ethyl 3-amino-6,6-dimethyl-4,6-dihydropyrrolo[3,4-c]pyrazole-1,5-dicarboxylate hydrochloride (CAS 2444880-17-3)
- 1,2-5,6-Di-O-isopropylidene-D-mannitol (CAS 1707-77-3)
- tert-Butyl 4-((4-(ethylcarbamoyl)-1H-1,2,3-triazol-1-yl)methyl)-4-hydroxypiperidine-1-carboxylate (CAS 1713589-95-7)
- N-{[(4-chlorophenyl)carbamoyl]amino}thiophene-2-carboxamide (CAS 349613-62-3)
- 3-[1-(3-Fluorobenzoyl)piperidin-4-yl]-4-[(4-methylphenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775558-49-0)
- 2-bromo-1-methyl-1H-pyrrole (CAS 56454-27-4)
- Semaglutide impurity 68 (CAS CATO-C4X-222668)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com