Benzbromarone Impurity 28 CAS CATO-C4X-225028
| CAS No. | CATO-C4X-225028 |
| Molecular Formula | C26H22O5 |
| Molecular Weight | 414.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Benzbromarone Impurity 28 (CAS CATO-C4X-225028), a pharmacopoeial impurity reference standard (molecular formula C26H22O5, MW 414.45 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, a hydroxyl group, an ether linkage, Benzbromarone Impurity 28 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 414.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C26H22O5 |
| Molecular Weight | 414.45 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ≥95% |
| 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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Benzbromarone Standards
- Benzbromarone Impurity 26 (CAS CATO-C4X-225026)
- Benzbromarone Impurity 27 (CAS CATO-C4X-225027)
- Benzbromarone Impurity 29 (CAS CATO-C4X-225029)
- Benzbromarone Impurity 30 (CAS CATO-C4X-225030)
- Benzbromarone Impurity 31 (CAS CATO-C4X-225031)
- Benzbromarone Impurity 22 (CAS CATO-C4X-225022)
- Benzbromarone (CAS 3562-84-3)
- Benzbromarone-d4 (CAS CATO-C4X-22502)
Recommended Standards
- Z-Val-Tyr-OH (CAS 862-26-0)
- Z-Tyr-Val-OH (C-2800.0005) (CAS 38972-89-3)
- Capivasertib Impurity 5 (CAS CATO-C4X-33125)
- Tetraethyl decane-1,10-diylbis(phosphonate) (CAS 5943-62-4)
- Brexpiprazole impurity 125 (CAS CATO-C4X-1131125)
- Dimetindene EP Impurity H (CAS 1346597-95-2)
- Evocalcet Impurity 62 (CAS CATO-C4X-248562)
- N-Benzyloxycarbonyl-4-[(3R)-3-amino-1-oxo-4-(phenylthio)butyl]morpholine (CAS 870812-93-4)
- Ethyl 4,5,6,7-tetrahydro-3H-imidazo[4,5-c]pyridine-2-carboxylate dihydrochloride (CAS 214782-04-4)
- Oxybis(4,1-phenylene) diacetate (CAS 23446-80-2)
- 1-(2-Fluoro-4-iodophenyl)piperazine (CAS 1121613-61-3)
- 2-(2-Amino-5-methylphenyl)acetonitrile (CAS 90765-19-8)
- Methyl 3-(4-chlorophenyl)-3-ethyloxirane-2-carboxylate (CAS 1512353-12-6)
- Insulin Degludec Impurity 19 (CAS CATO-C4X-215719)
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