Riociguat Impurity N40 CAS 428854-23-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 428854-23-3 |
| Molecular Formula | C23H18FN9 |
| Molecular Weight | 439.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Riociguat Impurity N40 (CAS 428854-23-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C23H18FN9. Molecular weight: 439.45 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C23H18FN9 |
| Molecular Weight | 439.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 9 |
Related Riociguat Standards
- Riociguat Impurity N2 （E-isomer） (CAS 370879-49-5)
- Riociguat Impurity 33 (CAS CATO-C4X-174933)
- Riociguat Impurity 4 (CAS CATO-C4X-17494)
- Riociguat Impurity 32 (CAS CATO-C4X-174932)
- Riociguat EP Impurity C (CAS CATO-C4X-174914)
- Riociguat Impurity 19 (CAS CATO-C4X-174919)
- Riociguat Impurity 37 (CAS CATO-C4X-174937)
- Riociguat Impurity 40 (CAS CATO-C4X-174940)
Recommended Standards
- Vericiguat Impurity 78 (CAS CATO-C4X-289678)
- (4Z)-3-tert-Butyl-1-(4-nitrophenyl)-4-[(3,4,5-trimethoxyphenyl)methylidene]-4,5-dihydro-1H-pyrazol-5-one (CAS 1025878-53-8)
- Lestaurtinib-13CD4 (CAS 111358-88-4)
- Dabigatran Impurity 59 (CAS CATO-C4X-108959)
- Cholesterol Impurity 29 (CAS 881024-99-3)
- Trans-2-hydroxycyclohexanecarboxamide (CAS 24947-95-3)
- 4-Hydroxy-N1,N1,N3-trimethylisophthalamide (CAS 1243286-90-9)
- 3-(Ethylsulfonyl)cyclohexan-1-amine (CAS 1340463-40-2)
- Olopatadine Impurity 28 (CAS 55453-89-9)
- Peptide 438 (CAS CATO-CPTD788438)
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