Benzbromarone Impurity 21 CAS 2518282-93-2
| CAS No. | 2518282-93-2 |
| Molecular Formula | C24H14Br4O5 |
| Molecular Weight | 701.98 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 701.98 g/mol gives Benzbromarone Impurity 21 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Benzbromarone Impurity 21 (CAS 2518282-93-2), a pharmacopoeial impurity reference standard (molecular formula C24H14Br4O5, MW 701.98 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, a hydroxyl group, an ether linkage, bromine substitution, Benzbromarone Impurity 21 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 701.98 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Benzbromarone Impurity 21 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 | C24H14Br4O5 |
| Molecular Weight | 701.98 g/mol |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Br-containing |
Related Benzbromarone Standards
- Benzbromarone EP Impurity B (CAS 1402819-05-9)
- Benzbromarone Impurity 7 (CAS 152831-00-0 (unlabelled))
- Benzbromarone Impurity 4 (CAS 152831-00-0)
- Benzbromarone-d5 (CAS CATO-C4X-22503)
- Benzbromarone-d4 (CAS CATO-C4X-22502)
- Benzbromarone Impurity 20 (CAS 2514676-29-8)
- Benzbromarone Impurity 22 (CAS CATO-C4X-225022)
- Benzbromarone (CAS 3562-84-3)
Recommended Standards
- Soblitodin (CAS 149606-27-9)
- Tiratricol Sulfate (CAS 95786-11-1)
- 2,2'-(Adipoylbis(oxy))bis(3,5-dibromobenzoic acid) (CAS 75848-76-9)
- CAS 54947-67-0 (CAS 54947-67-0)
- Suzetrigine Impurity 41-13C-d2 (CAS CATO-C4X-336941)
- Linagliptin impurity N2 (CAS 1446263-39-3)
- Argatroban Impurity 46 (CAS 57876-69-4)
- methyl 2-(1-ethyl-3,5-dimethyl-1H-pyrazol-4-yl)acetate (CAS 1007502-22-8)
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- 4-(Allyloxy)-3-bromo-5-ethoxybenzaldehyde (CAS 426232-67-9)
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- 3-((4-(2-Hydroxyethyl)piperazin-1-yl)methyl)benzonitrile (CAS 1156671-85-0)
- 2-chloro-3-methoxy-5,5-dimethylcyclohex-2-en-1-one (CAS 17530-67-5)
- (Des-Thr?)-Glucagon trifluoroacetate salt (CAS 1802078-27-8)
Why CATO?
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