Vardenafil Impurity 31 CAS CATO-C4X-101731
| CAS No. | CATO-C4X-101731 |
| Molecular Formula | C21H30N6O4S |
| Molecular Weight | 462.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C21H30N6O4S, Vardenafil Impurity 31 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 462.57 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).
As a process- or degradation-related impurity, Vardenafil Impurity 31 (CAS CATO-C4X-101731, C21H30N6O4S) 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 Vardenafil Impurity 31 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 | C21H30N6O4S |
| Molecular Weight | 462.57 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Vardenafil Standards
- Vardenafil Impurity 36 (CAS 224788-36-7)
- Vardenafil USP Related Compound E (CAS 448184-46-1)
- Vardenafil EP impurity A (CAS CATO-C4X-101722)
- Vardenafil EP Impurity A (CAS 2169247-39-4)
- Vardenafil Impurity 66 (CAS CATO-C4X-101766)
- Vardenafil Impurity N19 (CAS 2411340-39-9)
- Vardenafil Acetyl Analogue (CAS 1261351-28-3)
- Vardenafil Acetyl-d5 Analogue (CAS 1330171-51-1)
Recommended Standards
- N-(1-Cyanocyclohexyl)-2-((4-(2-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 851203-83-3)
- Sildenafil Impurity 10 (CAS 1393816-99-3)
- (8S,11R,13S,14S,17S)-11-(4-Cyclopropylphenyl)-17-(1,1-difluoroprop-2-yn-1-yl)-17-hydroxy-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one (CAS 2016795-77-8)
- Lubiprostone Impurity 14 (CAS CATO-C4X-113614)
- Sildenafil Impurity N4 (CAS 374776-34-8 (free base))
- Roxatidine Impurity 48 (CAS 4530-45-4)
- Cefcapene Impurity 77 (CAS CATO-C4X-182477)
- 4-(1-Methyl-1,2,3,6-tetrahydropyridin-4-yl)phenol (CAS 5233-54-5)
- rel-((1R,2S,5R)-8-Azabicyclo[3.2.1]octane-2-carboxylic acid hydrochloride) (CAS 1956309-65-1)
- 6-Acetylpyridin-2(1H)-one (CAS 137678-86-5)
- 2-Fluoro-6-iodobenzoyl chloride (CAS 111771-12-1)
- 4-Methyl-N-(7-methyl-9-oxo-9H-thioxanthen-2-yl)benzamide (CAS 860610-02-2)
- 5-Cyclopropoxy-4-fluoropicolinaldehyde (CAS 1243472-29-8)
- Semaglutide impurity 94 (CAS CATO-C4X-222694)
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