Ledipasvir Impurity 31 CAS CATO-C4X-331331
| CAS No. | CATO-C4X-331331 |
| Molecular Formula | C17H21NO2 |
| Molecular Weight | 271.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Ledipasvir Impurity 31 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Ledipasvir Impurity 31 (CAS CATO-C4X-331331) is a certified pharmaceutical impurity reference standard with the molecular formula C17H21NO2 and a molecular weight of 271.35 g/mol.
Ledipasvir Impurity 31 (C17H21NO2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Ledipasvir 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 | C17H21NO2 |
| Molecular Weight | 271.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Ledipasvir Standards
- Ledipasvir Impurity 29 (CAS CATO-C4X-331329)
- Ledipasvir Impurity 30 (CAS CATO-C4X-331330)
- Ledipasvir Impurity 32 (CAS CATO-C4X-331332)
- Ledipasvir Impurity 40 (CAS CATO-C4X-331340)
- Ledipasvir Impurity 8 (CAS CATO-C4X-33138)
- Ledipasvir Impurity 34 (CAS CATO-C4X-331334)
- Ledipasvir impurity 1 (CAS 134877-62-6)
- Ledipasvir Impurity 3 (CAS CATO-C4X-33133)
Recommended Standards
- Napropamide (CAS 15299-99-7)
- Nefopam Impurity 3 (CAS 60725-36-2)
- Boc-β-cyclohexyl-Ala-OH (CAS 37736-82-6)
- Apalutamide Impurity 80 (CAS CATO-C4X-274980)
- Atorvastatin Impurity 86 (CAS 1046118-44-8)
- Phytomenadione/Vitamin K1 Impurity 111 (CAS CATO-C4X-2207111)
- Umeclidinium Impurity 3 (CAS 869113-45-1)
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- 2-Methyl-5-nitro-benzothiazole (CAS 2941-66-4)
- 1-[(4-tert-Butylphenyl)methyl]-4-nitro-1h-pyrazole (CAS 1240570-45-9)
- Liraglutide (14-31)TFA Salt (CAS CATO-C4X-19927)
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