Clevidipine Butyrate impurity 19 CAS 253597-20-5
| CAS No. | 253597-20-5 |
| Molecular Formula | C15H15Cl2NO2 |
| Molecular Weight | 312.19 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Clevidipine Butyrate impurity 19 (CAS 253597-20-5) is a certified pharmaceutical impurity reference standard with the molecular formula C15H15Cl2NO2 and a molecular weight of 312.19 g/mol.
Based on its molecular formula C15H15Cl2NO2, Clevidipine Butyrate impurity 19 contains a nitrogen-containing heterocyclic scaffold, 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 312.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C15H15Cl2NO2 |
| Molecular Weight | 312.19 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Clevidipine Standards
- Clevidipine Impurity C41 (CAS 1898262-46-8)
- Clevidipine butyrate Impurity 15 (CAS 1801167-49-6)
- Clevidipine Impurity 40 (CAS CATO-C4X-101540)
- Clevidipine Butyrate impurity 18 (CAS 105383-68-4)
- Clevidipine impurity 38 (CAS 68064-72-2)
- Clevidipine Impurity 35 (CAS CATO-C4X-101535)
- Clevidipine Impurity 41 (CAS CATO-C4X-101541)
- Clevidipine butyrate Impurity 12 (CAS 91854-03-4)
Recommended Standards
- tert-Butyl 7-iodoheptanoate (CAS 54005-76-4)
- Prothioconazole-Desthio (CAS 120983-64-4)
- N-[2-(2,4-Dichlorophenoxy)ethyl]-4-methoxyaniline (CAS 356532-71-3)
- Methyl 1-(4-bromobenzyl)piperidine-4-carboxylate (CAS 1044924-03-9)
- Trifarotene Impurity 13 (CAS CATO-C4X-313213)
- Ibuprofen Impurity 157 (CAS 62049-65-4)
- Cefixime Impurity 86 (CAS CATO-C4X-113986)
- 6-((2,4-Dinitrophenyl)amino)hexanoic acid (CAS 10466-72-5)
- Trans-1,2,3,3A,5,9B-Hexahydro-Pyrrolo[3,4-C]Isoquinoline-4-Carboxylic Acid Tert-Butyl Ester (CAS 1251002-37-5)
- (R)-4-Amino-4-phosphonobutanoic acid (CAS 97846-38-3)
- (S)-N-(1-(2-Aminoethyl)pyrrolidin-3-yl)-N-cyclopropylacetamide (CAS 1353994-47-4)
- 2-(2-(2-Chlorophenoxy)acetyl)-N-(4-methoxyphenyl)hydrazine-1-carbothioamide (CAS 91543-59-8)
- (S)-3-(Benzyloxy)-10-hydroxy-2-methoxy-7,12-dihydrobenzo[5,6][1,4]diazepino[1,2-b]isoquinoline-6,14(5H,6aH)-dione (CAS 1971075-93-0)
- α Bag Cell Peptide (1-9) (CAS 87549-52-8)
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