Febantel Impurity 2 CAS CATO-C4X-29062
| CAS No. | CATO-C4X-29062 |
| Molecular Formula | C16H18N4O2S |
| Molecular Weight | 330.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Febantel Impurity 2 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.
CATO supplies Febantel Impurity 2 (CAS CATO-C4X-29062), a pharmacopoeial impurity reference standard (molecular formula C16H18N4O2S, MW 330.40 g/mol) used for the identification and quantification of trace impurities in APIs.
Febantel Impurity 2 (C16H18N4O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, 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).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C16H18N4O2S |
| Molecular Weight | 330.40 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Febantel Standards
Recommended Standards
- 1,1-Bis(2-ethoxy-2-oxoethyl)-4-(ethoxycarbonyl)piperidin-1-ium (CAS CATO-C4X-28819)
- 4,4'-Sulfonylbis[2-(2-propenyl)phenol (CAS 41481-66-7)
- Pivmecillinam EP Impurity A (CAS 25031-08-7)
- Bis(4-Allyloxyphenyl)sulfone (CAS 41481-63-4)
- Bicalutamide EP Impurity B (CAS 1159977-36-2)
- Somatostatin Impurity 22 (CAS CATO-C4X-235022)
- Fondaparinux Sodium Impurity 7 (CAS CATO-C4X-20527)
- trans-1,2-Diaminocyclopropane Dihydrochloride (CAS 3187-76-6)
- (S)-2-Amino-4-methoxybutanoic acid (CAS 3311-01-1)
- Clomifene Impurity 17 (CAS 5530-99-4(free base))
- 4-(Dibenzylamino)phenol (CAS 7468-99-7)
- (2E)-1-(3,4-Dichlorophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (CAS 183798-71-2)
- 5-(4-Chlorophenyl)-1,2,4-oxadiazole-3-carboxylic acid (CAS 187999-16-2)
- Ac-(5-31)Semaglutide (CAS CATO-C4X-2226279)
Why CATO?
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