Clevidipine Butyrate Impurity 26 CAS 1020718-27-7
| CAS No. | 1020718-27-7 |
| Molecular Formula | C16H16Cl2O5 |
| Molecular Weight | 359.20 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Clevidipine Butyrate Impurity 26 (CAS 1020718-27-7), a pharmacopoeial impurity reference standard (molecular formula C16H16Cl2O5, MW 359.20 g/mol) used for the identification and quantification of trace impurities in APIs.
Clevidipine Butyrate Impurity 26 (C16H16Cl2O5) contains a flavonoid core, 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C16H16Cl2O5 |
| Molecular Weight | 359.20 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, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
Related Clevidipine Standards
- Clevidipine Impurity 24-13C-d3 (CAS CATO-C4X-101524)
- Clevidipine butyrate Impurity 1 (CAS 105580-45-8)
- Clevidipine Butyrate impurity 17 (CAS 123853-39-4)
- Clevidipine Impurity 7 (CAS 91854-02-3)
- Clevidipine butyrate Impurity 11 (CAS 138279-32-0)
- Clevidipine butyrate Impurity 12 (CAS 91854-03-4)
- Clevidipine Impurity 41 (CAS CATO-C4X-101541)
- Clevidipine impurity 38 (CAS 68064-72-2)
Recommended Standards
- tert-Butyl 8-iodo-3,4-dihydroisoquinoline-2(1H)-carboxylate (CAS 1989622-58-3)
- Prop-2-yn-1-yl 3-bromo-4-((2-methylbenzyl)oxy)benzoate (CAS 1706440-71-2)
- Ethyl 2-(1-(3,4-dichlorobenzoyl)-3-oxopiperazin-2-yl)acetate (CAS 318469-60-2)
- Prop-2-yn-1-yl 3-bromo-4-((4-methylbenzyl)oxy)benzoate (CAS 1706456-44-1)
- Rosuvastatin EP Impurity J (Sodium Salt) (CAS 2226413-62-1(Free Acid))
- Mometasone Impurity 35 (CAS CATO-C4X-170435)
- Dronedarone Impurity 56 (CAS 28141-24-4)
- 2-(2-Amino-5-(difluoromethyl)-6-(trifluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805160-61-5)
- 2-Ethylhexyl carbamate (CAS 4248-21-9)
- ethyl azepane-2-carboxylate (CAS 2886-92-2)
- 4'-Bromo-[2,2'-bipyridin]-4-amine (CAS 1185318-65-3)
- 3-Hydrazinyl-6-(p-tolyl)pyridazine (CAS 18772-77-5)
- 1352523-17-1 tert-Butyl 2-(pyridin-4-yl)pyrrolidine-1-carboxylate MFCD20529996 (CAS 1352523-17-1)
- Semaglutide impurity 25 (CAS CATO-C4X-222625)
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