Tiotropium impurity 45 CAS 535995-21-2
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 535995-21-2 |
| Molecular Formula | C19H25NO5 |
| Molecular Weight | 347.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Tiotropium impurity 45 (CAS 535995-21-2) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C19H25NO5. Molecular weight: 347.41 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C19H25NO5 |
| Molecular Weight | 347.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Related Tiotropium Standards
- Tiotropium EP Impurity D (CAS 136310-66-2)
- Tiotropium Bromide EP Impurity B (CAS 136310-64-0)
- Tiotropium Bromide Impurity 20 (CAS 1459721-06-2)
- Tiotropium impurity 43 (CAS CATO-C4X-176443)
- Tiotropium impurity 42 (CAS 2512209-13-9)
- Tiotropium impurity 50 (CAS CATO-C4X-176450)
- Tiotropium impurity 48 (CAS CATO-C4X-176448)
- Tiotropium Bromide EP Impurity K (CAS CATO-C4X-176411)
Recommended Standards
- Norepinephrine EP Impurity G (CAS 13062-58-3)
- Salcaprozate Impurity 7 (CAS CATO-C4X-25077)
- Norepinephrine Impurity 123 (CAS CATO-C4X-1514123)
- Galanthamine Impurity 18 (CAS CATO-C4X-143518)
- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- 105907-34-4 3-Chloro-N-(4-methylbenzyl)propanamide 8266AC C11H14ClNO (CAS 105907-34-4)
- 1-Fluoro-4-isopropoxy-2-methylbenzene (CAS 798563-62-9)
- 5-(2,2,2-Trifluoroethoxy)nicotinic acid (CAS 1304787-81-2)
- N-isobutyl-N-(3-methylthiophene-2-carbonyl)glycine (CAS 1283111-64-7)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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 13829788188 / jacky.chen@cato-chem.com