Sildenafil Impurity 42 CAS 2146091-79-2
| CAS No. | 2146091-79-2 |
| Molecular Formula | C24H32N6OS2 |
| Molecular Weight | 484.68 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Sildenafil Impurity 42 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.
CATO supplies Sildenafil Impurity 42 (CAS 2146091-79-2), a pharmacopoeial impurity reference standard (molecular formula C24H32N6OS2, MW 484.68 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C24H32N6OS2, Sildenafil Impurity 42 contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 484.68 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.
Physical & Chemical Properties
| Molecular Formula | C24H32N6OS2 |
| Molecular Weight | 484.68 g/mol |
| Purity | >95% |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Sildenafil Standards
- Sildenafil Impurity 88 (CAS CATO-C4X-112888)
- Sildenafil-D3 (CAS 1126745-90-1)
- Sildenafil-d8 (CAS 951385-68-5)
- Sildenafil Impurity 288 (CAS CATO-C4X-1128288)
- Sildenafil EP Impurity A (CAS 1391053-95-4)
- Sildenafil Impurity 84 (CAS CATO-C4X-112884)
- Sildenafil EP Impurity B (CAS 1094598-75-0)
- Sildenafil Impurity 289 (CAS CATO-C4X-1128289)
Recommended Standards
- poricoic acid B; (+)-poricoic acid B (CAS 137551-39-4)
- Mupirocin Impurity 17 (CAS 153900-96-0)
- 1-((6Ar,8R,9Ar)-2,2,4,4-Tetraisopropyl-9-Oxotetrahydro-6H-Furo[3,2-F][1,3,5,2,4]Trioxadisilocin-8-Yl)Pyrimidine-2,4(1H,3H)-Dione (CAS 84828-97-7)
- Cinnarizine EP Impurity D (CAS 1199751-98-8)
- Relugolix Impurity 197 (CAS CATO-C4X-2429197)
- Tofacitinib Impurity 73 (CAS CATO-C4X-107973)
- Ceritinib Impurity 11 (CAS CATO-C4X-104811)
- N-({1'-benzyl-4',5'-dimethyl-1'H-[1,2'-bipyrrole]-3'-yl}methyl)-3-(trifluoromethyl)benzamide (CAS 478077-17-7)
- 2-(4-Ethoxyphenoxy)-N-methoxy-N-methylacetamide (CAS 1462230-45-0)
- 7-Chloro-6-methyl-1H-indazole (CAS 1427447-56-0)
- n-Cyclohexyl-2-((5-methylisoxazol-3-yl)oxy)acetamide (CAS 923137-75-1)
- 5-((2-Hydroxyethyl)thio)-6-methyl-2-(trichloromethyl)pyrimidin-4(3H)-one (CAS 82551-97-1)
- 2-Bromo-4-methyl-6-(trifluoromethyl)pyridin-3-amine (CAS 2055497-17-9)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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