Tunodafil Impurity 5 CAS CATO-C4X-31105
| CAS No. | CATO-C4X-31105 |
| Molecular Formula | C22H28N6O5S |
| Molecular Weight | 488.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Tunodafil Impurity 5 (CAS CATO-C4X-31105), a pharmacopoeial impurity reference standard (molecular formula C22H28N6O5S, MW 488.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Tunodafil Impurity 5 (C22H28N6O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Tunodafil Impurity 5 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 | C22H28N6O5S |
| Molecular Weight | 488.56 g/mol |
| Purity | >95% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Tunodafil Standards
- Tunodafil Impurity 10 (CAS CATO-C4X-311010)
- Tunodafil Impurity 3 (CAS CATO-C4X-31103)
- Tunodafil Impurity 11 (CAS CATO-C4X-311011)
- Tunodafil Impurity 13 (CAS CATO-C4X-311013)
- Tunodafil Impurity 1 (CAS CATO-C4X-31101)
- Tunodafil Impurity 2 (CAS CATO-C4X-31102)
- Tunodafil Impurity 6 (CAS CATO-C4X-31106)
- Tunodafil Impurity 7 (CAS CATO-C4X-31107)
Recommended Standards
- Upadacitinib Impurity 210 (CAS CATO-C4X-2405210)
- Olanzapine-N10-Glucuronide (CAS 186792-80-3)
- N-(5-Acetamido-2-methoxyphenyl)-2-((5-(pyridin-4-yl)-4-(p-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477318-63-1)
- (S)-5-tert-Butoxy-4-(3-((S)-1,5-di-tert-butoxy-1,5-dioxopentan-2-yl)ureido)-5-oxopentanoic acid (CAS 1026987-94-9)
- Revefenacin Dimer Impurity 8 (CAS CATO-C4X-20318)
- Indobufen Impurity 42 (CAS CATO-C4X-179242)
- Levodopa Impurity 18 (CAS 33605-56-0)
- 2-Nitrophenylarsonic Acid (CAS 5410-29-7)
- Dibutyl L-(+)-Tartrate (CAS 87-92-3)
- 3-(3-Chlorophenyl)-1-(4-methylpyridin-2-yl)pyrrolidine-2,5-dione (CAS 132459-02-0)
- 2-Amino-2-(4-(tert-butyl)phenyl)ethan-1-ol (CAS 127428-64-2)
- 2-Oxo-3-phenyl-1,2-dihydroquinoline-4-carboxylic acid (CAS 62569-75-9)
- 3-Chloro-4-nitro-2-propoxypyridine (CAS 1881328-90-0)
- Insulin Degludec Impurity 7 (CAS CATO-C4X-21577)
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