Tolterodine Impurity 9 CAS 854306-72-2
| CAS No. | 854306-72-2 |
| Molecular Formula | C35H41NO2 |
| Molecular Weight | 507.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Tolterodine Impurity 9 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
As a process- or degradation-related impurity, Tolterodine Impurity 9 (CAS 854306-72-2, C35H41NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Tolterodine Impurity 9 (C35H41NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 507.71 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C35H41NO2 |
| Molecular Weight | 507.71 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
Related Tolterodine Standards
- Tolterodine Impurity N2 (CAS 156755-37-2)
- Tolterodine Impurity 11 (O-Benzyl Tolterodine) (CAS 848768-06-9)
- Tolterodine Impurity N1 (CAS 1380491-70-2)
- Tolterodine Impurity 29 (CAS 124937-85-5)
- Tolterodine Impurity 10 (CAS 894773-86-5)
- Tolterodine Acid (as Racemate) (CAS 194482-44-5)
- Tolterodine Impurity 13 (CAS CATO-C4X-176713)
- Tolterodine impurity 37 (CAS 1554029-91-2)
Recommended Standards
- N-(4-bromophenyl)-4-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)oxy)benzenesulfonamide (CAS 338775-38-5)
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- (Ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetraboronic acid (CAS 1905395-21-2)
- N-[(1R,2R)-2-(Dimethylamino)cyclohexyl]-N'-[(8α,9S)-6'-methoxycinchonan-9-yl]thiourea (CAS 1101846-75-6)
- Bumetanide Impurity 84 (CAS CATO-C4X-198684)
- Cyanocobalamin /Vitamin B12 Impurity 38 (CAS CATO-C4X-187438)
- Dapagliflozin Impurity 132 (CAS CATO-C4X-1138132)
- 3-Bromo-4-fluoro-2-nitrobenzaldehyde (CAS 1807192-88-6)
- (S)-3-Oxocyclopentanecarboxylic acid (CAS 71830-06-3)
- 2-(4'-Hydroxy-[1,1'-biphenyl]-4-yl)acetic acid (CAS 51350-23-3)
- 1-[(2,4-Dichlorophenyl)methyl]-3-(4-ethyl-5-sulfanyl-4H-1,2,4-triazol-3-yl)-1,2-dihydropyridin-2-one (CAS 242471-92-7)
- 2-(4-(Difluoromethyl)-2-(trifluoromethyl)pyridin-3-yl)acetic acid (CAS 1805947-10-7)
- 4-(3-Picolyl)-3-thiosemicarbazide (CAS 76609-47-7)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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