Norfloxacin EP Impurity A CAS 68077-26-9
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 68077-26-9 |
| Molecular Formula | C12H9ClFNO3 |
| Molecular Weight | 269.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Norfloxacin EP Impurity A (CAS 68077-26-9) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C12H9ClFNO3. Molecular weight: 269.66 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H9ClFNO3 |
| Molecular Weight | 269.66 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Norfloxacin Standards
- Norfloxacin Impurity C70 (CAS 106847-38-5)
- Norfloxacin Impurity C18 (CAS 70458-93-4)
- Norfloxacin Impurity 4 (CAS 75073-15-3)
- Norfloxacin Impurity 60 (CAS CATO-C4X-146860)
- Norfloxacin EP Impurity D (CAS 75001-82-0)
- Norfloxacin Impurity 52 (CAS 7251-32-3)
- Norfloxacin Impurity 59 (CAS CATO-C4X-146859)
- Norfloxacin Impurity 53 (CAS 70459-06-2)
Recommended Standards
- Pefloxacin EP Impurity H (CAS 106847-40-9)
- methyl 3-(2-chloro-6-fluorophenyl)-5-methylisoxazole-4-carboxylate (CAS 4415-09-2)
- 4-Chloro-2-(((2,4-difluorophenyl)amino)methyl)phenol (CAS 1019514-06-7)
- Dabigatran Impurity 111 (CAS CATO-C4X-1089111)
- Orphenadrine USP Related Compound B (CAS 93940-17-1)
- Ethyl 2-((4-oxo-3-phenyl-4H-pyrazino[1,2-a]pyrimidin-2-yl)oxy)butanoate (CAS 21271-35-2)
- 3,5-Dichloro-4-((4-methylbenzyl)oxy)benzonitrile (CAS 1024414-35-4)
- 5-(piperazin-1-yl)azepan-2-one (CAS 1909316-54-6)
- (R)-4-(Pyrrolidin-2-yl)phenol hydrochloride (CAS 2055848-95-6)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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