Barnidipine Impurity 3 CAS CATO-C4X-27563
| CAS No. | CATO-C4X-27563 |
| Molecular Formula | C27H29N3O6 |
| Molecular Weight | 491.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Barnidipine Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 491.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies Barnidipine Impurity 3 (CAS CATO-C4X-27563), a pharmacopoeial impurity reference standard (molecular formula C27H29N3O6, MW 491.54 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Barnidipine Impurity 3 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 | 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 |
| Nitrogen Atoms | 3 |
Related Barnidipine Standards
Recommended Standards
- 6,7-Dimethoxy-3-(thiophen-2-ylmethyl)-2-((4-(trifluoromethyl)benzyl)thio)quinazolin-4(3H)-imine (CAS 691858-13-6)
- N-Ethyl-4-(2-(4-fluoro-2,6-dimethylphenoxy)-5-(2-hydroxypropan-2-yl)phenyl)-6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridine-2-carboxamide (CAS 2138861-99-9)
- AZD-7624, >98% (HPLC) (CAS 1095004-78-6)
- Aztreonam N-Butyl Ester (CAS CATO-C4X-152238)
- Ceftazidime Impurity 75 (CAS CATO-C4X-121275)
- Ursodeoxycholic acid impurity 29 (CAS CATO-C4X-142229)
- Vardenafil Impurity 36 (CAS 224788-36-7)
- 3,3'-Difluoro-4-methoxy-1,1'-biphenyl (CAS 942474-97-7)
- Azithromycin EP Impurity J (CAS 117693-41-1)
- Acetic acid isobutyric anhydride (CAS 7137-30-6)
- N-(4-Methoxyphenyl)-3-phenyl-5-propylpyrazolo[1,5-a]pyrimidin-7-amine (CAS 890626-72-9)
- 2-(Diethylamino)thieno[2,3-d][1,3]thiazole-5-carboxylic acid (CAS 1193388-10-1)
- 4-(3-(2-Fluorophenyl)-[1,2,4]triazolo[4,3-c]quinazolin-5-yl)morpholine (CAS 338977-94-9)
- [D-His]-Semaglutide B (x TFA Salt) (CAS CATO-C4X-2226117)
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