Efavirenz Impurity 19 CAS 173676-60-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 173676-60-3 |
| Molecular Formula | C21H19ClF3NO2 |
| Molecular Weight | 409.83 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Efavirenz Impurity 19 (CAS 173676-60-3) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C21H19ClF3NO2. Molecular weight: 409.83 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C21H19ClF3NO2 |
| Molecular Weight | 409.83 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 |
| 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) | 11.0 |
| 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
- Efavirenz Impurity 12 (CAS 221177-56-6)
- Efavirenz Impurity 9 (CAS 209414-26-6)
- Efavirenz Impurity 1 (CAS 353270-77-6)
- Efavirenz Impurity 5 (CAS 1189491-03-9)
- Efavirenz Impurity 11 (CAS CATO-C4X-162711)
- Efavirenz Impurity 4 (CAS 174819-21-7)
- Efavirenz Impurity 7 (CAS 211563-41-6)
- Efavirenz Impurity 8 (CAS 211563-40-5)
Recommended Standards
- 3-[(4-Chlorobenzenesulfonyl)methyl]-N-[(1E)-(dimethylamino)methylidene]-4-nitrobenzamide (CAS 1164481-20-2)
- Telantinib (CAS 332012-40-5)
- Methyl (2Z)-2-(4-chlorobenzenesulfonyl)-3-[(2,3-dihydro-1,4-benzodioxin-6-yl)amino]prop-2-enoate (CAS 1327187-59-6)
- Degarelix Impurity 4 (CAS CATO-C4X-21364)
- Eldecalcitol Impurity 79 (CAS CATO-C4X-214079)
- (2S,4S)-Benzyl 4-fluoropyrrolidine-2-carboxylate (CAS 1353743-73-3)
- Glucose impurity 15 (CAS 1181972-37-1)
- 2-Hydrazinyl-3-(trifluoromethyl)pyridine (CAS 89570-83-2)
- Butyric Anhydride (CAS 106-31-0)
- Endo-Pro36-Tirzepatide (CAS CATO-CPTD788688)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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