Pefloxacin Mesilate Dihydrate EP Impurity B CAS 70458-73-0
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 70458-73-0 |
| Molecular Formula | C17H20ClN3O3 |
| Molecular Weight | 349.81 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pefloxacin Mesilate Dihydrate EP Impurity B (CAS 70458-73-0) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H20ClN3O3. Molecular weight: 349.81 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C17H20ClN3O3 |
| Molecular Weight | 349.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Pefloxacin Standards
- Pefloxacin Mesilate Dihydrate EP Impurity D (CAS 85145-21-7)
- Pefloxacin-D5 (CAS 1228182-51-1)
- Pefloxacin Impurity 1 (CAS 81530-83-8)
- Pefloxacin Impurity 7 (CAS CATO-C4X-23337)
- Pefloxacin Impurity 8 (CAS CATO-C4X-23338)
- Pefloxacin Impurity 9 (CAS 125292-94-6)
- Pefloxacin Mesilate Dihydrate EP Impurity G (CAS 70458-94-5)
- Pefloxacin Impurity 2 (CAS CATO-C4X-23332)
Recommended Standards
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- Idebenone Impurity N2 (CAS 77712-29-9)
- Brivaracetam impurity 96 (CAS 164453-64-9)
- n-(4-Fluorophenyl)-5-methyl-3-phenylisoxazole-4-carboxamide (CAS 505088-42-6)
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- (4-Cyclopropylphenyl)methanamine (CAS 118184-67-1)
- Ethyl 5-benzyl-4-oxo-4,5-dihydro-3H-pyrrolo[3,2-d]pyrimidine-7-carboxylate (CAS 1318133-16-2)
- Peptide 431 (CAS CATO-CPTD788431)
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