Norfloxacin Impurity 44 CAS 140700-98-7
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 140700-98-7 |
| Molecular Formula | C11H9ClFNO |
| Molecular Weight | 225.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Norfloxacin Impurity 44 (CAS 140700-98-7) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C11H9ClFNO. Molecular weight: 225.65 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C11H9ClFNO |
| Molecular Weight | 225.65 g/mol |
| Purity | 97%+ |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Norfloxacin Standards
- Norfloxacin lmpurity 28 (CAS 1119454-98-6)
- Norfloxacin lmpurity 29 (CAS 1529604-41-8)
- Norfloxacin Impurity 38 (CAS CATO-C4X-146838)
- Norfloxacin Impurity 12 (CAS 75001-63-7)
- Norfloxacin Impurity 3 (CAS 16600-24-1)
- Norfloxacin Impurity 32 (CAS 70032-16-5)
- Norfloxacin Impurity 57 (CAS CATO-C4X-146857)
- Norfloxacin Impurity 52 (CAS 7251-32-3)
Recommended Standards
- Vonoprazan Impurity 250 (CAS CATO-C4X-1020250)
- 1H-Pyrazolo[3,4-d]pyrimidine-3-carbonitrile, 4-chloro-6-(methylthio)- (CAS 1379363-08-2)
- 4-Chloromethyl-2-(4-fluorophenyl)-5-methyl-oxazole (CAS 625826-69-9)
- Fulvestrant Impurity 8 (CAS 252947-01-6)
- Avatrombopag Impurity 34 (CAS CATO-C4X-223434)
- N-(2-((4-Fluorophenyl)sulfonyl)-2-(thiophen-2-yl)ethyl)benzenesulfonamide (CAS 896346-72-8)
- 1-(4-Chlorophenyl)-2-{[5-(3,5-di-tert-butyl-4-hydroxyphenyl)-1,3,4-thiadiazol-2-yl]sulfanyl}ethan-1-one (CAS 478063-33-1)
- 2-Nitro-4-(trifluoromethyl)benzamide (CAS 22227-55-0)
- (S)-1-(2-chlorophenyl)ethan-1-amine hydrochloride (CAS 1398109-11-9)
- TRAF6 Control Peptide trifluoroacetate salt (CAS 852690-80-3)
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