Halobetasol Impurity 13 CAS CATO-C4X-331413
| CAS No. | CATO-C4X-331413 |
| Molecular Formula | - |
| Molecular Weight | 411.87 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Halobetasol Impurity 13 (CAS CATO-C4X-331413) is a certified pharmaceutical impurity reference standard with the molecular formula N/A and a molecular weight of 411.87 g/mol.
Halobetasol Impurity 13 is supplied as a fully characterized reference material; its structural identity, assigned purity, and stability data are documented in the batch-specific Certificate of Analysis (COA).
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), Halobetasol Impurity 13 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 | C21H25AClFO5 |
| Molecular Weight | 411.87 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
Related Halobetasol Standards
- Halobetasol Impurity 7 (CAS 32232-54-5)
- Halobetasol Propionate Impurity 14 (CAS CATO-C4X-331414)
- Halobetasol (CAS 98651-66-2)
- Halobetasol Impurity 8 (CAS CATO-C4X-33148)
- Halobetasol Impurity 9 (CAS CATO-C4X-33149)
- Halobetasol Impurity 10 (CAS CATO-C4X-331410)
- Halobetasol Impurity 3 (CAS 181527-42-4)
- Halobetasol Impurity 4 (CAS CATO-C4X-33144)
Recommended Standards
- 5-(Chloromethyl)-4-(phenethoxymethyl)-2-(4-(trifluoromethyl)phenyl)thiazole (CAS 444613-00-7)
- 3-((3aS,4R,6aR)-6-(benzyloxymethyl)-2,2-dimethyl-4,6a-dihydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)-4-chloro-3H-imidazo[4,5-c]pyridine (CAS 105522-24-5)
- N'-[(1E)-{3-chloro-4-[(4-fluorophenyl)methoxy]phenyl}methylidene]-2-(phenylamino)acetohydrazide (CAS 329777-98-2)
- 1-(4-Chloro-2-methoxybenzoyl)-4-[(3-phenyl-1,2,4-oxadiazol-5-yl)methyl]piperidine (CAS 1775314-06-1)
- Roxadustat Impurity 54 (CAS CATO-C4X-221354)
- Minocycline EP Impurity A (CAS 43168-51-0)
- Dacomitinib Impurity 28 (CAS CATO-C4X-208628)
- N-(2-Nitrophenylsulfenyl)-L-threonine (dicyclohexylammonium) salt (CAS 14921-33-6)
- 2-(4-Chlorophenyl)-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-amine (CAS 1311186-61-4)
- N-Phenyl-2-(trifluoromethyl)aniline (CAS 14925-11-2)
- tert-Butyl 5-benzylhexahydropyrrolo[3,4-c]pyrrole-2(1H)-carboxylate (CAS 186202-73-3)
- (R)-Stiripentol (CAS 144017-65-2)
- 2,6-Di(pyridin-4-yl)pyrrolo[3,4-f]isoindole-1,3,5,7(2H,6H)-tetraone (CAS 34072-51-0)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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