Benidipine Impurity 13 CAS 39562-17-9
| CAS No. | 39562-17-9 |
| Molecular Formula | C12H11NO5 |
| Molecular Weight | 249.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Benidipine Impurity 13 (CAS 39562-17-9) is a certified pharmaceutical impurity reference standard with the molecular formula C12H11NO5 and a molecular weight of 249.22 g/mol.
Structurally, Benidipine Impurity 13 (C12H11NO5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 249.22 g/mol, it falls into the medium-molecular-weight range. 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).
As a certified reference material (CRM), Benidipine Impurity 13 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H11NO5 |
| Molecular Weight | 249.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related Benidipine Standards
- Benidipine Impurity N1 (CAS 118431-03-1)
- Benidipine Impurity 11 (CAS 52604-00-9)
- Benidipine Impurity 46 (CAS 40034-60-4)
- Benidipine Impurity 51 (CAS CATO-C4X-112051)
- Benidipine Impurity 77 (CAS CATO-C4X-112077)
- Benidipine Impurity 78 (CAS CATO-C4X-112078)
- Benidipine Impurity 14 (CAS 85387-34-4)
- Benidipine Impurity 72 (CAS CATO-C4X-112072)
Recommended Standards
- N-Carbobenzoxyoxysuccinimide (CAS 13139-17-8)
- Lercanidipine Impurity 45 (CAS CATO-C4X-136445)
- 6,8-Dimethoxy-4-oxo-1,4-dihydro-quinoline-3-carboxylic acid 73674-79-0 9000AE C12H11NO5 (CAS 73674-79-0)
- Lercanidipine Impurity 47 （Z-Isomer） (CAS CATO-C4X-136447)
- Trametinib impurity 13 (CAS CATO-C4X-278213)
- Testosterone Impurity 49 (CAS CATO-C4X-243249)
- Prucalopride Impurity 30 (CAS 58344-73-3)
- 2-(Cyclopentyloxy)pyridin-3-ol (CAS 1881327-96-3)
- Sitafloxacin Impurity 12 (CAS 2008714-64-3)
- (3-((Pent-4-en-1-ylamino)methyl)oxetan-3-yl)methanol (CAS 1866946-40-8)
- Ethyl (Z)-2-chloro-2-(2-phenylhydrazono)acetate (CAS 1105636-26-7)
- 2-(3,5-Dichlorophenyl)nicotinic acid (CAS 1261960-20-6)
- 1-Bromo-4-iodo-2-methylbenzene (CAS 202865-85-8)
- β-Asp9-Tirzepatide (CAS CATO-CPTD788931)
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