Benidipine Impurity 28(Mixture of Diastereomers) CAS 121138-43-0
| CAS No. | 121138-43-0 |
| Molecular Formula | C27H29N3O6 |
| Molecular Weight | 491.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Benidipine Impurity 28(Mixture of Diastereomers).
Benidipine Impurity 28(Mixture of Diastereomers) (CAS 121138-43-0) is a certified pharmaceutical impurity reference standard with the molecular formula C27H29N3O6 and a molecular weight of 491.54 g/mol.
The molecular framework of Benidipine Impurity 28(Mixture of Diastereomers) (C27H29N3O6) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. 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. 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 | C27H29N3O6 |
| Molecular Weight | 491.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
Related Benidipine Standards
- Benidipine Impurity 44 (CAS CATO-C4X-112044)
- Benidipine Impurity 26 (CAS CATO-C4X-112026)
- Benidipine Impurity 68 (CAS CATO-C4X-112068)
- Benidipine Impurity 60 (CAS CATO-C4X-112060)
- Benidipine Impurity 61 (CAS CATO-C4X-112061)
- Benidipine (CAS 105979-17-7)
- Benidipine Impurity 1 (CAS 91599-75-6)
- Benidipine Impurity 29 (CAS CATO-C4X-112029)
Recommended Standards
- Linagliptin Impurity 57 (CAS 2416949-69-2)
- Apixaban Impurity 32 (CAS CATO-C4X-108832)
- Palbociclib Impurity 101 (CAS CATO-C4X-1125101)
- Fmoc-N-Me-D-His(Boc)-OH (CAS 2044710-02-1)
- Oseltamivir Impurity 244 (CAS CATO-C4X-1720244)
- Azithromycin Impurity 27 (CAS CATO-C4X-100327)
- Mirogabalin Impurity 161 (CAS CATO-C4X-2924161)
- 6-Amino-2,5-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 900319-17-7)
- Oxaliplatin Impurity 1 (CAS CATO-C4X-27611)
- 6-Hydrazinyl-2H-indazole (CAS 72372-66-8)
- Tert-butyl (1-(3,5-difluorobenzyl)piperidin-4-yl)carbamate (CAS 779339-16-1)
- 3-Bromo-N,N-diethyl-2-pyridinamine (CAS 1248729-13-6)
- 2-Amino-α-methyl-α-(2-methylpropyl)benzenemethanol (CAS 203448-87-7)
- Tau Peptide (298-312) trifluoroacetate salt (CAS 330456-47-8)
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