Efavirenz Impurity 4 CAS 174819-21-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 174819-21-7 |
| Molecular Formula | C22H17ClF3NO3 |
| Molecular Weight | 435.82 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
High-purity Efavirenz Impurity 4 (CAS 174819-21-7) pharmacopoeial impurity standards reference standard. Molecular formula: C22H17ClF3NO3. Molecular weight: 435.82 g/mol. Produced by CATO, one of China's leading reference material manufacturers, with COA documentation and global shipping.
Physical & Chemical Properties
| Molecular Formula | C22H17ClF3NO3 |
| Molecular Weight | 435.82 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Efavirenz Standards
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Recommended Standards
- Methyl 4-((4-((3-chloro-5-(trifluoromethyl)pyridin-2-yl)methyl)phenoxy)methyl)benzoate (CAS 338415-83-1)
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- 3-Butyl-4-pentylquinolin-2(1H)-one (CAS 6017-89-6)
- Tolvaptan Impurity 122 (CAS CATO-C4X-1955122)
- Apalutamide impurity 88 (CAS 1367708-38-0)
- 3-Carboethoxy-2-piperidinomethyl benzophenone (CAS 898751-95-6)
- tert-butyl (2S)-2-(cyanomethyl)azetidine-1-carboxylate (CAS 228868-28-8)
- 2-(6-(4-Methylpiperazin-1-yl)pyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352499-33-2)
- 6-Methyl-3-phenyl-1,4-dihydropyrazin-2-ol (CAS 114482-51-8)
- Adrenal Peptide E, bovine (CAS 78355-50-7)
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