Remdesivir Impurity 35 CAS 1911578-98-7
| CAS No. | 1911578-98-7 |
| Molecular Formula | C21H23F5NO5P |
| Molecular Weight | 495.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Remdesivir Impurity 35 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.
Remdesivir Impurity 35 (CAS 1911578-98-7) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23F5NO5P and a molecular weight of 495.38 g/mol.
Remdesivir Impurity 35 (C21H23F5NO5P) contains a flavonoid core, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C21H23F5NO5P |
| Molecular Weight | 495.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Remdesivir Standards
- Remdesivir Impurity 45 (CAS 1911578-99-8)
- Remdesivir Impurity 29 (CAS CATO-C4X-210029)
- Remdesivir Impurity 30 (CAS CATO-C4X-210030)
- Remdesivir Impurity 15 (CAS CATO-C4X-210015)
- Remdesivir Impurity 22 (CAS 2096985-18-9)
- Remdesivir Impurity 23 (CAS 2093124-22-0)
- Remdesivir Impurity 34 (CAS 1354823-37-2)
- Remdesivir Impurity 7 (CAS 1439900-56-7)
Recommended Standards
- 6-Bromonaphthalen-2-yl 3-phenyl-3-(phenylsulfonyl)propanoate (CAS 2376300-54-6)
- (2E)-3-{4-[(4-bromophenyl)methoxy]phenyl}-1-[4-(2-fluorophenyl)piperazin-1-yl]prop-2-en-1-one (CAS 477888-98-5)
- 2-((4-(4-Bromophenyl)-5-(pyridin-4-yl)-4H-1,2,4-triazol-3-yl)thio)-1-(4-ethoxyphenyl)ethanone (CAS 477333-11-2)
- Perampanel impurity 40 (CAS CATO-C4X-243040)
- Ribavirin Impurity 42 (CAS 799-87-1)
- Olmesartan Medoxomilum EP Impurity A (CAS 144689-24-7)
- Flurbiprofen Impurity 73 (CAS CATO-C4X-144473)
- N,N-diallyl-5-bromopyridin-2-amine (CAS 309977-78-4)
- (1-cyclopropyl-2-methyl-1H-1,3-benzodiazol-5-yl)methanamine dihydrochloride (CAS 1803612-02-3)
- Minoxidil (CAS 38304-91-5)
- N-(4-chloro-3-methylisoxazol-5-yl)-3-(trifluoromethyl)benzamide (CAS 478262-53-2)
- 2-(3,4-Dichlorophenoxy)benzaldehyde (CAS 289717-77-7)
- 1-(4-(3-Bromopropyl)phenyl)ethanone (CAS 41996-96-7)
- Insulin Degludec Impurity 9 (CAS CATO-C4X-21579)
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