Tadalafil Impurity 62 CAS CATO-C4X-108762
| CAS No. | CATO-C4X-108762 |
| Molecular Formula | C23H24N4O4 |
| Molecular Weight | 420.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Tadalafil Impurity 62.
CATO supplies Tadalafil Impurity 62 (CAS CATO-C4X-108762), a pharmacopoeial impurity reference standard (molecular formula C23H24N4O4, MW 420.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C23H24N4O4, Tadalafil Impurity 62 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C23H24N4O4 |
| Molecular Weight | 420.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Tadalafil Standards
- Tadalafil Impurity 167 (CAS CATO-C4X-1087167)
- Tadalafil EP Impurity D (CAS CATO-C4X-10874)
- Tadalafil EP Impurity E (CAS 2520114-41-2)
- Tadalafil EP Impurity F (CAS 2747958-44-5)
- Tadalafil EP Impurity H (CAS 1978322-98-3)
- Tadalafil Impurity 32 (CAS CATO-C4X-108732)
- Tadalafil Impurity 82 (CAS CATO-C4X-108782)
- Tadalafil Impurity 162 (CAS CATO-C4X-1087162)
Recommended Standards
- Netobimin (CAS 88255-01-0)
- Nimodipine Impurity 18 (CAS CATO-C4X-138518)
- N-(2-Oxo-2-((3-(2-oxopyrrolidin-1-yl)phenyl)amino)ethyl)-4-(2-oxopyrrolidin-1-yl)benzamide (CAS 924237-73-0)
- Irinotecan EP Impurity G (CAS 947687-01-6)
- Emedastine Impurity 34 (CAS CATO-C4X-226734)
- Betahistine impurity 29 (CAS CATO-C4X-183829)
- Mexiletine Impurity 3 (CAS 123363-66-6)
- 7-Nitrobenzo[d]thiazol-2(3H)-one (CAS 134098-72-9)
- 1-Methyl-1H-pyrazolo[3,4-b]pyridin-5-amine hydrochloride (CAS 1311369-44-4)
- 2-Bromo-4-chloro-6-(difluoromethyl)pyridine (CAS 1806777-22-9)
- Lasmiditan Impurity 14 (CAS CATO-C4X-247814)
- Fluconazole Impurity 38 (CAS 1774-47-6)
- 2-((4-Methylbenzyl)thio)-5-(4-nitrophenyl)-1,3,4-oxadiazole (CAS 332869-58-6)
- Insulin Degludec Impurity 26 (CAS CATO-C4X-215726)
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