N-Nitroso Tiotropium impurity 52 CAS CATO-C4X-176452
| CAS No. | CATO-C4X-176452 |
| Molecular Formula | C18H20N2O5S2 |
| Molecular Weight | 408.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of N-Nitroso Tiotropium impurity 52 (C18H20N2O5S2) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
N-Nitroso Tiotropium impurity 52 (CAS CATO-C4X-176452) is a certified pharmaceutical impurity reference standard with the molecular formula C18H20N2O5S2 and a molecular weight of 408.49 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.
CATO manufactures N-Nitroso Tiotropium impurity 52 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 | C18H20N2O5S2 |
| Molecular Weight | 408.49 g/mol |
| 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 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related N Standards
- N-Nitroso Lumateperone (CAS CATO-C4X-220127)
- N-Nitroso Ambroxol impurity 114 (CAS CATO-C4X-1085114)
- N-Nitroso Finerenone (CAS CATO-C4X-28808)
- N-Nitroso Trichlormethiazide (CAS CATO-C4X-30671)
- N-Nitroso Vortioxetine Bromo Impurity 106 (CAS CATO-C4X-1056106)
- Nitroso Perindopril EP impurity E (CAS CATO-C4X-125247)
- N-Nitroso Cinacalcet Impurity 2 (CAS CATO-C4X-105972)
- N-Nitroso Nafamostat impurity 117 (CAS CATO-C4X-1332117)
Recommended Standards
- Paliperidone Impurity 42 (CAS 1380413-60-4)
- Ubenimex Impurity 13 (CAS CATO-C4X-185213)
- Desfluoro Iloperidone (CAS 133454-46-3)
- Naftopidil Impurity 2 (CAS 133024-36-9)
- Atrasentan Impurity 76 (CAS 1058551-13-5)
- Dotinurad Impurity 254 (CAS CATO-C4X-2494254)
- Crizotinib impurity 23 (CAS 877399-73-0)
- Spiro[cyclopropane-1,3'-pyrrolo[3,2-c]pyridin]-2'(1'H)-one (CAS 1637752-30-7)
- Benzaldehyde-α-<SUP>13</SUP>C (CAS 10383-90-1)
- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
- 7-Butoxy-3H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 92333-32-9)
- (Benzo[b]thiophen-3-ylmethyl)hydrazine (CAS 887593-54-6)
- 1,3-Dichloro-2,2-difluoropropane (CAS 1112-36-3)
- [3-31]-Semaglutide D (CAS C152H230N42O47)
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