Benidipine Impurity 15 HCl CAS 105589-45-5(free base)
| CAS No. | 105589-45-5(free base) |
| Molecular Formula | C21H25N3O6 |
| Molecular Weight | N/A |
| 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.
As a process- or degradation-related impurity, Benidipine Impurity 15 HCl (CAS 105589-45-5(free base), C21H25N3O6HCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Benidipine Impurity 15 HCl is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 451.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C21H25N3O6 HCl |
| Molecular Weight | 451.90 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Benidipine Standards
- Benidipine Impurity 63 (CAS 105589-45-5)
- Benidipine (CAS 105979-17-7)
- Benidipine Impurity 67 (CAS 105979-18-8)
- Benidipine Impurity N1 (CAS 118431-03-1)
- Benidipine Impurity 11 (CAS 1185304-22-6)
- Benidipine Impurity 28(Mixture of Diastereomers) (CAS 121138-43-0)
- rac Benidipine-d5 Hydrochloride (CAS 1329633-88-6)
- Benidipine Impurity N50 (CAS 1353946-52-7)
Recommended Standards
- Hesperidin Impurity 5 (CAS CATO-C4X-33275)
- Oxymetazoline EP Impurity E (CAS 55699-10-0)
- Omeprazole Impurity 49 (CAS 89352-76-1)
- (4,6-Dichloropyridin-3-yl)boronic acid hydrate (CAS 1072952-26-1)
- 1-(Methoxymethyl)-3-methyl-2-nitrobenzene (CAS 507455-94-9)
- Eltrombopag Impurity 110 (CAS CATO-C4X-1198110)
- (R)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)hex-5-enoic acid (CAS 865352-21-2)
- Doxapram Impurity 30 (CAS CATO-C4X-197330)
- 1-(5-(Ethylthio)-1,3,4-oxadiazol-2-yl)-2-phenylethan-1-amine (CAS 856436-81-2)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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