Febantel EP Impurity A CAS 92088-58-9
| CAS No. | 92088-58-9 |
| Molecular Formula | C18H20N4O4S |
| Molecular Weight | 388.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Febantel EP Impurity A (CAS 92088-58-9), a pharmacopoeial impurity reference standard (molecular formula C18H20N4O4S, MW 388.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H20N4O4S, Febantel EP Impurity A contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 388.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Febantel EP Impurity A meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H20N4O4S |
| Molecular Weight | 388.44 g/mol |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Febantel Standards
Recommended Standards
- Upadacitinib Impurity 197 (CAS CATO-C4X-2405197)
- Upadacitinib Impurity 15 (CAS 1201187-44-1)
- (Z)-7-[(1S,2R,3R,5S)-6,6-Difluoro-3-[(E,3S)-3-Hydroxyoct-1-Enyl]-4,7-Dioxabicyclo[3.1.1]Heptan-2-Yl]Hept-5-Enoic Acid (CAS 121573-36-2)
- Safinamide Impurity 66 (CAS CATO-C4X-159066)
- Ilaprazole Impurity 29 (CAS CATO-C4X-113029)
- Tramadol EP Impurity C HCl (CAS 192834-41-1)
- Dotinurad Impurity 7 (CAS 1285572-63-5)
- 2-Amino-3-[1-(tert-butoxycarbonyl)-piperidin-4-yl]propanoic acid (CAS 1255666-24-0)
- N-(3-hydroxy-2-iodopyridin-4-yl)acetamide (CAS 1186310-97-3)
- 5-Chloro-3-methoxythiophene-2-carboxylic acid (CAS 62910-69-4)
- BP-14989, >98% (HPLC) (CAS 1000036-77-0)
- 4-(2-Ethoxyethoxy)-3-isopropylbenzenesulfonyl chloride (CAS 1155916-27-0)
- 2-[3-(4-nitrophenyl)-1-phenyl-1h-pyrazol-4-yl]acetic acid (CAS 905811-75-8)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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