Tolterodine Impurity N5 CAS 1189501-90-3
| CAS No. | 1189501-90-3 |
| Molecular Formula | C16H19 |
| Molecular Weight | 241.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a polycyclic aromatic system, Tolterodine Impurity N5 is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 241.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Tolterodine Impurity N5 (CAS 1189501-90-3, C16H19) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 Tolterodine Impurity N5 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 | C16H19 |
| Molecular Weight | 241.33 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
Related Tolterodine Standards
- Tolterodine Impurity 8 (CAS 851789-43-0)
- Tolterodine Impurity 26 (CAS 828933-86-4)
- Tolterodine Impurity 6 (CAS 209747-04-6)
- Tolterodine Impurity 13 (CAS 88407-29-8)
- Tolterodine Impurity 5 (CAS 349547-18-8)
- Tolterodine Impurity 1 (CAS 40546-94-9)
- Tolterodine Benzopyranone Impurity (CAS 16299-22-2)
- Tolterodine EP Impurity A (CAS 124937-73-1)
Recommended Standards
- N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (CAS 77377-52-7)
- Famotidine impurity 01 (CAS 1185040-73-6)
- Nicardipine Impurity N12 (CAS CATO-C4X-29432)
- 1-(5-(((2-Cyanoethyl)thio)methyl)thiazol-2-yl)guanidine (CAS 131184-89-9)
- Relebactam Impurity 154 (CAS CATO-C4X-2144154)
- Amoxicillin Impurity N5 (CAS 68728-47-2)
- Lysine Impurity 17 (CAS 923-27-3)
- 1-(3-Chloro-4-methylphenyl)-4-oxopyrrolidine-3-carbonitrile (CAS 1312139-73-3)
- 2-Bromo-3-(difluoromethyl)-5-iodo-4-methylpyridine (CAS 1805407-77-5)
- 2,2,2-Trifluoroethyl n-(2-methoxyethyl)carbamate (CAS 1209447-22-2)
- 2-Bromo-N-(3,4-difluorobenzyl)-4-methylthiazole-5-carboxamide (CAS 1072806-42-8)
- 3-(3,5-Dimethoxyphenyl)-5-(((6-(4-isopropylphenyl)pyridazin-3-yl)thio)methyl)-1,2,4-oxadiazole (CAS 1114915-45-5)
- 2,8-Bis(trifluoromethoxy)-5-(trifluoromethyl)-5H-dibenzo[b,d]thiophen-5-ium trifluoromethanesulfonate (CAS 2833773-70-7)
- Tirzepatide Impurity 20 (CAS CATO-C4X-324020)
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