Nisoldipine Impurity 3 CAS CATO-C4X-18653
| CAS No. | CATO-C4X-18653 |
| Molecular Formula | C20H24N2O6 |
| Molecular Weight | 388.41 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.
Nisoldipine Impurity 3 (CAS CATO-C4X-18653) is a certified pharmaceutical impurity reference standard with the molecular formula C20H24N2O6 and a molecular weight of 388.41 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, Nisoldipine Impurity 3 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 388.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Nisoldipine 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 | C20H24N2O6 |
| Molecular Weight | 388.41 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Nisoldipine Standards
- Nisoldipine (CAS 63675-72-9)
- Nisoldipine USP Related Compound D (CAS 103026-83-1)
- (±)-Nisoldipine-d4 (2-nitrophenyl-d4) (CAS 1219795-47-7)
- Nisoldipine Impurity 4 (CAS 106685-70-5)
- Nisoldipine Impurity 4 (CAS 87375-91-5)
- Nisoldipine Impurity 1 (CAS 2226462-71-9)
- Nisoldipine Impurity 2 (CAS CATO-C4X-18652)
- Nisoldipine Impurity 6 (CAS 61312-59-2)
Recommended Standards
- Nitrendipine Impurity 18 (CAS CATO-C4X-183418)
- Landiolol Impurity 106 (CAS CATO-C4X-2621106)
- Nicardipine Impurity 31 (CAS CATO-C4X-171031)
- Landiolol Impurity 111 (CAS CATO-C4X-2621111)
- Sugammadex Sodium Impurity Org210839-1 (CAS CATO-C4X-190674)
- Pomalidomide Impurity 41 (CAS CATO-C4X-135441)
- Linagliptin Impurity 18 (CAS 668273-74-3)
- 3-Methoxy-2-(methoxymethoxy)benzaldehyde (CAS 5779-96-4)
- 2-Benzyl-2,3-dihydro-1H-isoindole-1-carboxylic acid ethyl ester hydrochloride (CAS 1260640-69-4)
- 8-Chloro-2,3-dihydro-4H-pyrano[3,2-b]pyridin-4-one (CAS 1561781-99-4)
- Finasteride Impurity 12 (CAS CATO-C4X-164512)
- tert-Butyl (perfluoropyridin-4-yl)oxycarbamate (CAS 2591503-10-3)
- 5-(4-Chloro-phenyl)-2-ethyl-2H-pyrazole-3-carboxylic acid (CAS 1015868-72-0)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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