Avanafil Impurity 81 CAS 89702-89-6
| CAS No. | 89702-89-6 |
| Molecular Formula | C8H11NO2 |
| Molecular Weight | 153.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Avanafil Impurity 81.
Avanafil Impurity 81 (CAS 89702-89-6) is a certified pharmaceutical impurity reference standard with the molecular formula C8H11NO2 and a molecular weight of 153.18 g/mol.
Avanafil Impurity 81 (C8H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Avanafil Impurity 81 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 | C8H11NO2 |
| Molecular Weight | 153.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Nitrogen Atoms | 1 |
Related Avanafil Standards
Recommended Standards
- Lansoprazole Impurity 46 (CAS 86604-77-5)
- Ilaprazole impurity 204 (CAS 1379034-97-5)
- Esomeprazole Impurity 94 (CAS 91219-89-5)
- Ilaprazole Impurity 40 (CAS 102625-96-7)
- Propofol Impurity 38 (CAS CATO-C4X-147338)
- Argatroban Impurity 22 (CAS CATO-C4X-100722)
- Torasemide Impurity 27 (CAS CATO-C4X-183627)
- 2-(3,3-dimethoxycyclobutyl)ethan-1-ol (CAS 1788043-94-6)
- Topiroxostat Impurity 78 (CAS CATO-C4X-105578)
- 7-Bromo-4-propoxy-2-propylphthalazin-1(2H)-one (CAS 502961-50-4)
- Canagliflozin Impurity 31 (CAS 2005454-69-1)
- 4-Fluroisoquinoline-5-sulfonyl chloride (CAS 906820-08-4)
- 6-(4-Hydroxy-3-methylphenyl)-2-methylhept-2-en-4-one (CAS 949081-05-4)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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