Nisoldipine Impurity 4 CAS 106685-70-5
| CAS No. | 106685-70-5 |
| Molecular Formula | C20H24N2O7 |
| Molecular Weight | 404.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Nisoldipine Impurity 4 (CAS 106685-70-5), a certified reference material (molecular formula C20H24N2O7, MW 404.41 g/mol) for analytical method development and quality control.
Based on its molecular formula C20H24N2O7, Nisoldipine Impurity 4 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 404.41 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C20H24N2O7 |
| Molecular Weight | 404.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Nisoldipine Standards
- (±)-Nisoldipine-d4 (2-nitrophenyl-d4) (CAS 1219795-47-7)
- Nisoldipine Impurity 3 (CAS CATO-C4X-18653)
- Nisoldipine (CAS 63675-72-9)
- Nisoldipine USP Related Compound D (CAS 103026-83-1)
- Nisoldipine Impurity 1 (CAS 2226462-71-9)
- Nisoldipine Impurity 4 (CAS 87375-91-5)
- Nisoldipine Impurity 2 (CAS CATO-C4X-18652)
- Nisoldipine Impurity 6 (CAS 61312-59-2)
Recommended Standards
- Polyester bis-MPA dendron, 4 hydroxyl, 1 acetylene (CAS 1055361-96-0)
- Myxochelin A (CAS 120243-02-9)
- Riociguat Impurity 18 (CAS 1361569-23-4)
- N-(5-acetyl-4-methylthiazol-2-yl)-N-(3-(trifluoromethyl)phenyl)benzamide (CAS 1209571-20-9)
- 1,1,1-Trifluoro-3-(4-methyl-1H-pyrazol-1-yl)propan-2-ol (CAS 1341486-74-5)
- Pyridin-2-yl(3-(1,1,2,2-tetrafluoroethoxy)phenyl)methanone (CAS 1443342-15-1)
- Benzyl 2,6-diazaspiro[4.5]decane-6-carboxylate (CAS 1086394-76-4)
- 7-Amino-6-phenylpyrazolo[1,5-a]pyrimidine-3-carbonitrile (CAS 320417-39-8)
- (4-Methyl-2-(2-methyl-1H-imidazol-1-yl)pyrimidin-5-yl)boronic acid (CAS 2225177-53-5)
- 2-Bromo-6-nitro-4-(pyridin-3-yl)aniline (CAS 797047-13-3)
- 2-Clenbuterol Glucose (CAS CATO-C4X-199315)
- (S)-2-Amino-N-cyclopropyl-N-(4-(dimethylamino)cyclohexyl)-3-methylbutanamide (CAS 1353999-45-7)
- 2-amino-1-(2-methylpiperidin-1-yl)propan-1-one (CAS 56414-90-5)
- Semaglutide impurity 275 (CAS CATO-C4X-2226275)
Why CATO?
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com