Sitafloxacin Impurity 16 CAS 98349-24-7
| CAS No. | 98349-24-7 |
| Molecular Formula | C11H9F3O3 |
| Molecular Weight | 246.18 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Sitafloxacin Impurity 16 (CAS 98349-24-7) is a certified pharmaceutical impurity reference standard with the molecular formula C11H9F3O3 and a molecular weight of 246.18 g/mol.
Sitafloxacin Impurity 16 (C11H9F3O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Sitafloxacin Impurity 16 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H9F3O3 |
| Molecular Weight | 246.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
Related Sitafloxacin Standards
- Sitafloxacin Impurity 15 (CAS CATO-C4X-115515)
- Sitafloxacin Impurity 20 (CAS CATO-C4X-115520)
- Sitafloxacin Impurity 49 (CAS 129306-06-5)
- Sitafloxacin Impurity 33 (CAS CATO-C4X-115533)
- Sitafloxacin impurity 57 (CAS CATO-C4X-115557)
- Sitafloxacin Impurity 19 (CAS CATO-C4X-115519)
- Sitafloxacin impurity 53 (CAS 1933694-45-1)
- (7R)-Sitafloxacin Impurity 13 (CAS 127199-44-4)
Recommended Standards
- trans-2-[4-(Trifluoromethoxy)phenyl]cyclopropanecarboxylic Acid (CAS 238431-33-9)
- Tirofiban Impurity 126 (CAS CATO-C4X-1254126)
- n-(3,4-Dichlorobenzyl)-2-methylbutan-2-amine (CAS 932176-81-3)
- Levofloxacin Impurity 101 (CAS 105804-40-8)
- delafloxacin Impurity 1 (CAS CATO-C4X-26371)
- Lurbinectedin Impurity 33 (CAS CATO-C4X-311433)
- Finerenone Impurity 236 (CAS CATO-C4X-2880236)
- 5-Methoxy-2-(methoxycarbonyl)benzoic acid (CAS 681469-62-5)
- 3-Bromo-2,4-dichlorobenzenesulfonyl chloride (CAS 1349708-80-0)
- Phenylmercuric Octanoate (CAS 13864-38-5)
- Benzyl 2-cyclopropylacetate (CAS 59698-18-9)
- Z-Gly-Gly-Arg-4MbNA . HCl (J-1115.0050) (CAS 63424-41-9)
- O-Desethyl-O-propyl Methisosildenafil (CAS 1391053-82-9)
- Semaglutide Impurity 130 (CAS 1188328-40-6)
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 18665070610 / Nicole.chen@cato-chem.com