Efavirenz Impurity 1 CAS 353270-77-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 353270-77-6 |
| Molecular Formula | C21H17ClF3NO3 |
| Molecular Weight | 423.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Efavirenz Impurity 1 (CAS 353270-77-6) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C21H17ClF3NO3. Molecular weight: 423.81 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C21H17ClF3NO3 |
| Molecular Weight | 423.81 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Efavirenz Standards
- Efavirenz Impurity 5 (CAS 1189491-03-9)
- Efavirenz Impurity 11 (CAS CATO-C4X-162711)
- Efavirenz Impurity 4 (CAS 174819-21-7)
- Efavirenz Impurity 12 (CAS 221177-56-6)
- Efavirenz Impurity 19 (CAS 173676-60-3)
- Efavirenz Impurity 9 (CAS 209414-26-6)
- Efavirenz Impurity 7 (CAS 211563-41-6)
- (S)-Efavirenz N-β-D-GlucuronideDiscontinued (CAS 252343-21-8)
Recommended Standards
- Benzalkonium Chloride impurity 5 (CAS 41961-81-3)
- 5-Amino-N-(4-(chlorodifluoromethoxy)phenyl)-1-(4-methoxybenzyl)-1H-1,2,3-triazole-4-carboxamide (CAS 524036-00-8)
- (2Z)-3-{6-chloro-2-phenylimidazo[1,2-a]pyridin-3-yl}-2-[3-(trifluoromethyl)phenyl]prop-2-enenitrile (CAS 478248-60-1)
- Huperzine A Impurity 8 (CAS CATO-C4X-31238)
- Relugolix Impurity 208 (CAS CATO-C4X-2429208)
- 4-Chlorobiphenyl-2-carboxaldehyde (CAS 153850-83-0)
- tert-Butyl 4-{[(1-cyanocyclopentyl)carbamoyl]methyl}-1,4-diazepane-1-carboxylate (CAS 946384-41-4)
- 2-(Trifluoromethoxy)phenylacetic acid 2-trifluoromethoxyphenyl acetic acid (2-trifluoromethoxy-phenyl)-acetic acid 220239-67-8 (CAS 220239-67-8)
- 2,2-Difluoro-3-(pyridin-4-yl)propanoic acid (CAS 1473446-63-7)
- Sperm Activating Peptide, Sea Urchin (CAS 140653-27-6)
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 13829788188 / jacky.chen@cato-chem.com