Tunodafil Impurity 2 CAS CATO-C4X-31102
| CAS No. | CATO-C4X-31102 |
| Molecular Formula | C22H29N5O4S |
| Molecular Weight | 459.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 459.56 g/mol gives Tunodafil Impurity 2 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Tunodafil Impurity 2 (CAS CATO-C4X-31102), a pharmacopoeial impurity reference standard (molecular formula C22H29N5O4S, MW 459.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C22H29N5O4S, Tunodafil Impurity 2 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 459.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Tunodafil Impurity 2 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.
Physical & Chemical Properties
| Molecular Formula | C22H29N5O4S |
| Molecular Weight | 459.56 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Tunodafil Standards
- Tunodafil Impurity 1 (CAS CATO-C4X-31101)
- Tunodafil Impurity 13 (CAS CATO-C4X-311013)
- Tunodafil Impurity 10 (CAS CATO-C4X-311010)
- Tunodafil Impurity 5 (CAS CATO-C4X-31105)
- Tunodafil Impurity 3 (CAS CATO-C4X-31103)
- Tunodafil Impurity 11 (CAS CATO-C4X-311011)
- Tunodafil Impurity 6 (CAS CATO-C4X-31106)
- Tunodafil Impurity 7 (CAS CATO-C4X-31107)
Recommended Standards
- Norneo Sildenafil (CAS 371959-09-0)
- Sildenafil Impurity 291 (CAS CATO-C4X-1128291)
- Pseudo Vardenafil (CAS 224788-34-5)
- Pavinetant (CAS 941690-55-7)
- Sibutramine Impurity 6 (CAS 2758418-79-8)
- Loxoprofen impurity 134 (CAS CATO-C4X-1488134)
- Brigatinib Impurity AP26123 (CAS 1197958-75-0)
- tert-Butyl (S)-4-(hexadec-2-ynoyl)-2,2-dimethyloxazolidine-3-carboxylate (CAS 120005-55-2)
- (E)-3-(Thiazol-4-yl)acrylaldehyde (CAS 185947-65-3)
- 4-Octanoylstyrene (CAS 24993-87-1)
- Mestanolone (CAS 521-11-9)
- 4-(5-Propyl-1,2,4-oxadiazol-3-yl)aniline (CAS 10364-76-8)
- 5,8-Dimethyl-2,5,8-triazaspiro[3.4]Octan-6-one (CAS 2306274-33-7)
- Semaglutide Impurity 6 (CAS 62-57-7)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com