Vericiguat Impurity 79 CAS CATO-C4X-289679
| CAS No. | CATO-C4X-289679 |
| Molecular Formula | C23H17F2N9 |
| Molecular Weight | 457.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Vericiguat Impurity 79 (C23H17F2N9) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution. 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).
Vericiguat Impurity 79 (CAS CATO-C4X-289679) is a certified pharmaceutical impurity reference standard with the molecular formula C23H17F2N9 and a molecular weight of 457.44 g/mol.
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 | C23H17F2N9 |
| Molecular Weight | 457.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 95% |
| 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 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 9 |
Related Vericiguat Standards
- Vericiguat Impurity 11 (CAS 1350653-29-0)
- Vericiguat Impurity 23 (CAS CATO-C4X-289623)
- Vericiguat Impurity 28 (CAS CATO-C4X-289628)
- Vericiguat Impurity 81 (CAS CATO-C4X-289681)
- Vericiguat Impurity 86 (CAS CATO-C4X-289686)
- Vericiguat Impurity 95 (CAS CATO-C4X-289695)
- Vericiguat Impurity 33 (CAS CATO-C4X-289633)
- Vericiguat Impurity 58 (CAS CATO-C4X-289658)
Recommended Standards
- Nintedanib Impurity 177 (CAS CATO-C4X-1814177)
- Folitixorin (~80%) (Mixture of Diastereomers) (CAS 3432-99-3)
- Calcium Levofolinate EP Impurity I (CAS 31690-11-6)
- 4-[(4-Bromophenyl)sulfanyl]-2-{[(4-methylphenyl)methyl]sulfanyl}-5,6,7,8-tetrahydroquinazoline (CAS 343374-08-3)
- Neostigmine EP Impurity C (CAS 16088-19-0)
- Agomelatine Diacetyl Impurity (CAS 1379005-34-1)
- Pravastatin Impurity 59 (CAS 81131-74-0)
- (R)-2-(Dimethylamino)-2-phenylacetic acid hydrochloride (CAS 1007877-71-5)
- Ethyl 2-(1-benzylpyrrolidin-3-yl)-5-bromonicotinate 1706447-15-5 (CAS 1706447-15-5)
- Ethyl 3,5-dichloro-2-iodobenzoate (CAS 939989-95-4)
- 5,6-Dihydro-4H-thieno[2,3-c]pyrrole (CAS 933726-76-2)
- 2-((4-Amino-1,2,5-oxadiazol-3-yl)amino)acetic acid (CAS 401647-08-3)
- Rolapitant hydrochloride (CAS 914462-92-3)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
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