Atovaquone Impurity 4 CAS 91161-85-2
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 91161-85-2 |
| Molecular Formula | C14H17ClO |
| Molecular Weight | 236.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Atovaquone Impurity 4 (CAS 91161-85-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C14H17ClO. Molecular weight: 236.74 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C14H17ClO |
| Molecular Weight | 236.74 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
Related Atovaquone Standards
- Atovaquone Impurity 3 (Mixture of cis and trans Isomers) (CAS 95233-36-6)
- Atovaquone Impurity 1 (CAS 49708-81-8)
- Atovaquone Related Compound 3 (CAS 1346600-43-8)
- Atovaquone Impurity 6 (CAS CATO-C4X-15516)
- Atovaquone Impurity 9 (CAS 1100053-58-4)
- Atovaquone EP Impurity C (CAS 1809464-27-4)
- Atovaquone EP Impurity B (RC A) (CAS 137732-39-9)
- Atovaquone (CAS 95233-18-4)
Recommended Standards
- N-((6-chloro-1H-indol-3-yl)methyl)-N-ethylethanamine (CAS 63353-00-4)
- Hexachloroethane (CAS 67-72-1)
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- Arotinolol impurity 28 (CAS CATO-C4X-185428)
- Flecainide EP Impurity C (CAS 152171-74-9)
- 1-(5-(Hydroxymethyl)-2,5-dihydrofuran-2-yl)pyrimidine-2,4(1H,3H)-dione (CAS 159163-65-3)
- 1-[(1H-Pyrazol-1-yl)methyl]cyclopentan-1-ol (CAS 1464933-65-0)
- Tert-butyl 4-(2-amino-1-(4-fluorophenyl)ethyl)piperazine-1-carboxylate (CAS 1018297-04-5)
- 2-(3-Chlorophenyl)-2,2-difluoroacetamide (CAS 780769-48-4)
- Semaglutide impurity 229 (CAS CATO-C4X-2226229)
Why CATO?
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