Methisosildenafil Impurity 7 CAS 6290-24-0
| CAS No. | 6290-24-0 |
| Molecular Formula | C11H14O3 |
| Molecular Weight | 194.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Methisosildenafil Impurity 7 (CAS 6290-24-0) is a certified pharmaceutical impurity reference standard with the molecular formula C11H14O3 and a molecular weight of 194.23 g/mol.
Based on its molecular formula C11H14O3, Methisosildenafil Impurity 7 contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 194.23 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 Methisosildenafil Impurity 7 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 | C11H14O3 |
| Molecular Weight | 194.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Methisosildenafil Standards
- Methisosildenafil Impurity 11 (CAS 80540-58-5)
- Methisosildenafil Impurity 3 (CAS 639068-43-2)
- Methisosildenafil Impurity 4 (CAS 129779-30-2)
- Methisosildenafil Impurity 5 (CAS 1873303-87-7)
- Methisosildenafil Impurity 6 (CAS CATO-C4X-22846)
- Methisosildenafil (CAS 496835-35-9)
- Methisosildenafil Impurity 8 (CAS CATO-C4X-22848)
- Methisosildenafil Impurity 1 (CAS CATO-C4X-22841)
Recommended Standards
- Baricitinib Impurity 18 (CAS 1153949-11-1)
- Solriamfetol impurity 12 (CAS 178429-62-4)
- Ephedrine Impurity 3 (CAS 7181-48-8)
- Solriamfetol Impurity 7 (CAS 178429-63-5)
- Larotrectinib Impurity 3 (CAS 2409590-08-3)
- Sacubitril Impurity 8 (CAS CATO-C4X-28098)
- Posaconazole Impurity 76 (CAS CATO-C4X-120876)
- (4S,4'S)-2,2'-Cyclopentylidenebis[4,5-dihydro-4-phenyloxazole] (CAS 1639791-77-7)
- 6-Chloro-5-nitroimidazo[2,1-b][1,3]thiazole (CAS 23576-89-8)
- 2-(Chloromethyl)-1-fluoro-4-methoxybenzene (CAS 1076197-70-0)
- 2-(Benzyloxy)-6-hydroxybenzoic acid (CAS 71752-89-1)
- 4-(4-Tert-butylphenoxy)butanoic acid (CAS 87411-30-1)
- 5-Amino-2-(3-chlorophenyl)-2,4-dihydro-3H-pyrazol-3-one (CAS 54178-29-9)
- Semaglutide impurity 259 (CAS CATO-C4X-2226259)
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