N-Nitroso Paroxetine Impurity G CAS CATO-C4X-103579
| CAS No. | CATO-C4X-103579 |
| Molecular Formula | 2*C25H23FN2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-Nitroso Paroxetine Impurity G is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, N-Nitroso Paroxetine Impurity G (CAS CATO-C4X-103579, C25H23FN2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, N-Nitroso Paroxetine Impurity G is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 434.47 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures N-Nitroso Paroxetine Impurity G under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | 2*C25H23FN2O4 |
| Molecular Weight | 434.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related N Standards
- N-Nitroso Moexipril (CAS 1026879-47-9)
- N-Nitroso-N-Benzyl Anthranilic Acid (CAS 1028-91-7)
- N-Nitroso-2-Methylthiazolidine-4-Carboxylic Acid (CAS 103659-08-1)
- N-Nitroso Fexofenadine EP Impurity E (CAS 1038-06-8)
- N-Nitroso-N-methyl-3-aminopropionic Acid (CAS 10478-42-9)
- N-Nitroso Akardite II (CAS 1076199-26-2)
- N-Nitroso Thiamazole EP Impurity A (CAS 111348-65-3)
- N-Nitroso-Diethanolamine (CAS 1116-54-7)
Recommended Standards
- Tirofiban Impurity 71 (CAS CATO-C4X-125471)
- Roxadustat Impurity 86 (CAS CATO-C4X-221386)
- Lifitegrast Impurity 59 (CAS CATO-C4X-240959)
- 1-(5-Amino-1-methyl-2-indolyl)ethanone (CAS 1369235-44-8)
- 1-Isopropylurea (CAS 691-60-1)
- N-{2-[(1-bromo-2-naphthyl)oxy]ethyl}-3-methoxy-1-propanamine hydrochloride (CAS 1609400-43-2)
- 5-[(Z)-2-(2,3-Dimethylphenyl)diazen-1-yl]-4-(4-methylphenyl)-2-(pyridin-4-yl)pyrimidine (CAS 338414-23-6)
- Maltotriose (CAS 1109-28-0)
- Methyl 1-methylazetidine-2-carboxylate (CAS 33667-53-7)
- Semaglutide (CAS CATO-C4X-2226105)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com