Tolterodine impurity 37 CAS 1554029-91-2
| CAS No. | 1554029-91-2 |
| Molecular Formula | C22H31NO2 |
| Molecular Weight | 341.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Tolterodine impurity 37 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 341.49 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 37 (CAS 1554029-91-2, C22H31NO2) 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 37 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 | C22H31NO2 |
| Molecular Weight | 341.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Tolterodine Standards
- Tolterodine impurity 38 (CAS CATO-C4X-176738)
- Tolterodine Acid (as Racemate) (CAS 194482-44-5)
- Tolterodine (CAS 124937-51-5)
- (S)-Tolterodine (CAS 124937-53-7)
- Tolterodine Impurity 4 (CAS 906532-18-1)
- Tolterodine Impurity 39 (CAS CATO-C4X-176739)
- Tolterodine Acid N-Monodealkyl (as Racemate) (CAS 194482-43-4)
- Tolterodine impurity 36 (CAS 1391053-65-8)
Recommended Standards
- (S)-2-(3-(diisopropylamino)-1-phenylpropyl)-4-(hydroxymethyl)phenol (CAS 260389-90-0)
- Pimavanserin impurity 62 (CAS CATO-C4X-193862)
- Polyamide DISCONTINUED (CAS 63428-84-2)
- Pregnenolone Carbonitrile (CAS 1434-54-4)
- Sodium Fusidate EP Impurity C (CAS CATO-C4X-11973)
- Amoxicillin Impurity 31 (CAS 43189-12-4)
- Eldecalcitol Impurity 49 (CAS 171015-31-9)
- (2-benzylpyrrolidin-1-yl)-[(2S)-pyrrolidin-2-yl]methanone (CAS 1290202-26-4)
- 3’-dC(Bz)-2’-phosphor amidite (CAS 157327-96-3)
- Tegoprazan Impurity 94 (CAS 2385052-50-4)
- N-(3-methoxyphenyl)-6-nitroquinazolin-4-amine (CAS 691385-34-9)
- 2-Formyl-3-hydroxyisonicotinic acid (CAS 1289171-53-4)
- 1-Methyl-1h-pyrazole-5-carbohydrazide (CAS 197079-02-0)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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