9-(4-Bromobenzenesulfonyl)-13-nitro-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaene CAS 866157-19-9
| CAS No. | 866157-19-9 |
| Molecular Formula | C19H13BrN2O5S |
| Molecular Weight | 461.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
9-(4-Bromobenzenesulfonyl)-13-nitro-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaene (CAS 866157-19-9) is a high-purity analytical reference standard with the molecular formula C19H13BrN2O5S and a molecular weight of 461.29 g/mol.
Based on its molecular formula C19H13BrN2O5S, 9-(4-Bromobenzenesulfonyl)-13-nitro-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaene contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 461.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 9-(4-Bromobenzenesulfonyl)-13-nitro-2-oxa-9-azatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3,5,7,12,14-hexaene 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 | C19H13BrN2O5S |
| Molecular Weight | 461.29 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1-(2,6-Dichlorobenzyl)-4-(2,6-difluorobenzoyl)-3-methyl-3,4-dihydroquinoxalin-2(1H)-one (CAS 317833-50-4)
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- Tadalafil Impurity 26 (CAS 1598416-08-0)
- 4-Cyano-5-methoxy-1H-indazole (CAS 1352395-32-4)
- 5-Ethyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-ol (CAS 101861-35-2)
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- 2-(4-((tert-Butyldimethylsilyl)oxy)-2-methylbutan-2-yl)-3,5-dimethylphenol (CAS 134098-64-9)
- 3,5-Dimethyl-1-phenyl-1h-pyrazole-4-sulfonyl chloride (CAS 59340-26-0)
- Ethyl (2-oxo-2,3,4,5-tetrahydro-1H-benzo[d]azepin-1-yl)carbamate (CAS 209983-86-8)
- 3-(4-Methoxybenzyl)-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1263208-99-6)
- 3-Ethoxy-2-(2-methoxyethyl)-2H-indazole-6-carboxylic acid (CAS 919106-94-8)
- 5-Iodo-2-methylpent-2-ene (CAS 43161-11-1)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
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