Fluralaner impurity 28 CAS CATO-C4X-218028
| CAS No. | CATO-C4X-218028 |
| Molecular Formula | C18H13Cl2F3O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Fluralaner impurity 28 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.
Fluralaner impurity 28 (CAS CATO-C4X-218028) is a certified pharmaceutical impurity reference standard with the molecular formula C18H13Cl2F3O4C6H15N and a molecular weight of 522.38 g/mol.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, Fluralaner impurity 28 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 522.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C18H13Cl2F3O4 C6H15N |
| Molecular Weight | 522.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Fluralaner Standards
- Fluralaner Impurity N1 (CAS 1095275-07-2)
- Fluralaner Impurity N2 (CAS 1095275-26-5)
- Fluralaner Impurity 24 (CAS 1096103-99-9)
- Fluralaner Impurity 26 (CAS 1096119-52-6)
- Fluralaner Impurity 57 (CAS 1122021-93-5)
- (S)-Fluralaner (CAS 1122022-02-9)
- (R)-Fluralaner (CAS 1122022-03-0)
- Fluralaner Impurity 5 (CAS 1171331-39-7)
Recommended Standards
- Naltrexone impurity 33 (CAS CATO-C4X-147533)
- Moxifloxacin(R,R)-Nonane (CAS 151213-42-2)
- Chlortalidone EP Impurity C (CAS 92874-73-2)
- 6-chloro-4-phenyl-3-vinylquinolin-2(1H)-one (CAS 62452-22-6)
- 1-(4-Methoxy-2-(methoxymethoxy)phenyl)ethan-1-one (CAS 58544-83-5)
- Organophosphorus Pesticide Mix 5 (CAS CATO-MCPD103126-ME)
- N-(2-(4-(4-Fluorophenyl)piperazin-1-yl)-2-(furan-2-yl)ethyl)methanesulfonamide (CAS 877648-24-3)
- 2-Chloro-6,8-dimethylquinoline-3-carboxylic acid (CAS 436087-26-2)
- GO-Y016, 97% (CAS 17537-28-9)
- Des-Asp15-Tirzepatide (CAS CATO-CPTD788958)
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