Ledipasvir Impurity 22 CAS CATO-C4X-331322
| CAS No. | CATO-C4X-331322 |
| Molecular Formula | C36H44N6O4 |
| Molecular Weight | 624.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Ledipasvir Impurity 22 (CAS CATO-C4X-331322), a pharmacopoeial impurity reference standard (molecular formula C36H44N6O4, MW 624.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Ledipasvir Impurity 22 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 624.77 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C36H44N6O4 |
| Molecular Weight | 624.77 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
Related Ledipasvir Standards
- Ledipasvir Impurity-3 (CAS 1256388-50-7)
- Ledipasvir Impurity 13 (CAS CATO-C4X-331313)
- Ledipasvir Impurity 9 (CAS CATO-C4X-33139)
- Ledipasvir Impurity 27 (CAS CATO-C4X-331327)
- Ledipasvir Impurity 28 (CAS CATO-C4X-331328)
- Ledipasvir Impurity 4 (CAS CATO-C4X-33134)
- Ledipasvir Impurity 7 (CAS 1441670-89-8)
- Ledipasvir Impurity 26 (CAS CATO-C4X-331326)
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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