Benzbromarone Impurity 20 CAS 2514676-29-8
| CAS No. | 2514676-29-8 |
| Molecular Formula | C31H16Br6O7 |
| Molecular Weight | 979.88 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C31H16Br6O7, Benzbromarone Impurity 20 contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 979.88 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Benzbromarone Impurity 20 (CAS 2514676-29-8), a pharmacopoeial impurity reference standard (molecular formula C31H16Br6O7, MW 979.88 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C31H16Br6O7 |
| Molecular Weight | 979.88 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2000 |
| Halogen Content | Br-containing |
Related Benzbromarone Standards
- Benzbromarone Impurity 21 (CAS 2518282-93-2)
- 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 22 (CAS CATO-C4X-225022)
- Benzbromarone (CAS 3562-84-3)
Recommended Standards
- Dodecanedioyl CoADISCONTINUED. Please see D495064. (CAS 99237-33-9)
- BTC, AM, 95% (CAS 176767-94-5)
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