Clevidipine butyrate Impurity 6 CAS 175688-79-6
| CAS No. | 175688-79-6 |
| Molecular Formula | C21H19Cl2N3O4 |
| Molecular Weight | 448.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Clevidipine butyrate Impurity 6 (CAS 175688-79-6), a pharmacopoeial impurity reference standard (molecular formula C21H19Cl2N3O4, MW 448.30 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Clevidipine butyrate Impurity 6 (C21H19Cl2N3O4) 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. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C21H19Cl2N3O4 |
| Molecular Weight | 448.30 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Clevidipine Standards
- Clevidipine butyrate Impurity 4 (CAS 188649-48-1)
- Clevidipine Impurity 33 (CAS CATO-C4X-101533)
- Clevidipine Impurity 39 (CAS CATO-C4X-101539)
- Clevidipine Butyrate (CAS 167221-71-8)
- Clevidipine Butyrate impurity 20 (CAS 2458150-60-0)
- Clevidipine-d5 (CAS 1346602-00-3)
- Clevidipine-d7 (CAS CATO-C4X-101523)
- Clevidipine butyrate Impurity 9 (CAS CATO-C4X-10159)
Recommended Standards
- N-(4-iodophenyl)-4-methyl-2-(1-oxoisoindolin-2-yl)pentanamide (CAS 477889-82-0)
- Bosutinib Impurity 3 (CAS CATO-C4X-18473)
- N-(2-((2,6-Dichlorophenyl)amino)-2-oxoethyl)-4-(1,3-dioxoisoindolin-2-yl)-N-methylbutanamide (CAS 791598-98-6)
- Finerenone Impurity 93 (CAS CATO-C4X-288093)
- Glycyrrhizic Acid Impurity N1 (CAS 1477-44-7)
- Ketorolac Impurity 52 (CAS 147088-89-9)
- Valganciclovir USP RC D (CAS 1219792-42-3（free base）)
- 4-(o-Tolyl)-4H-benzo[b][1,4]thiazine-2-carbonitrile 1,1-dioxide (CAS 1206993-01-2)
- Tert-butyl (1-formylcyclohexyl)carbamate (CAS 594872-65-8)
- N-Phthaloylglycineamide (CAS 4935-96-0)
- 5-(4-Chlorophenyl)-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidine-2-carbohydrazide (CAS 832737-47-0)
- N-METHYL-2-FLUORO-4-IODOBENZAMIDE (CAS 1351185-56-2)
- tert-Butyl 5-formylisoindoline-2-carboxylate (CAS 253801-15-9)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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