Cloxacillin EP Impurity E CAS 18704-55-7
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 18704-55-7 |
| Molecular Formula | C27H28ClN5O7S2 |
| Molecular Weight | 634.12 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Cloxacillin EP Impurity E (CAS 18704-55-7) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C27H28ClN5O7S2. Molecular weight: 634.12 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C27H28ClN5O7S2 |
| Molecular Weight | 634.12 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cloxacillin Standards
- Cloxacillin Impurity 11 (CAS CATO-C4X-159711)
- Cloxacillin Impurity 14 (CAS CATO-C4X-159714)
- Cloxacillin Impurity 19 (CAS CATO-C4X-159719)
- Cloxacillin Impurity 24 (CAS CATO-C4X-159724)
- Cloxacillin Impurity 38 (CAS CATO-C4X-159738)
- Cloxacillin Impurity 7 (CAS CATO-C4X-15977)
- Cloxacillin Impurity 36 (CAS CATO-C4X-159736)
- Cloxacillin Impurity 22 (CAS CATO-C4X-159722)
Recommended Standards
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- Penitrem A (CAS 12627-35-9)
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- Eltrombopag Impurity 43 (CAS 223127-00-2)
- Nintedanib Impurity 154 (CAS CATO-C4X-1814154)
- N-(1-(Thiazol-2-yl)piperidin-4-yl)acetamide (CAS 596817-53-7)
- 1-(6-(Azepan-1-yl)-5-methylpyridin-3-yl)-N-methylmethanamine (CAS 1355218-69-7)
- 161809-64-9 3-(4-Bromophenyl)-1,1,1-trifluoro-2-propanone 5183AD C9H6BrF3O (CAS 161809-64-9)
- 1-(Prop-2-yn-1-yl)quinolin-2(1H)-one (CAS 35227-94-2)
- D-Thr5-Tirzepatide (CAS CATO-CPTD788926)
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