4,7-Dibromo-5,6-dinitro-2,1,3-benzoselenadiazole CAS 711026-22-1
| CAS No. | 711026-22-1 |
| Molecular Formula | C6Br2N4O4Se |
| Molecular Weight | 430.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,7-Dibromo-5,6-dinitro-2,1,3-benzoselenadiazole.
4,7-Dibromo-5,6-dinitro-2,1,3-benzoselenadiazole (CAS 711026-22-1) is a high-purity analytical reference standard with the molecular formula C6Br2N4O4Se and a molecular weight of 430.86 g/mol.
4,7-Dibromo-5,6-dinitro-2,1,3-benzoselenadiazole (C6Br2N4O4Se) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C6Br2N4O4Se |
| Molecular Weight | 430.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Dibromo Standards
- 2,4-Dibromo-3-iodo-6-(trifluoromethyl)pyridine (CAS 1214348-26-1)
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- 1,5-Dibromo-2,3-dichloro-4-iodobenzene (CAS 1160573-97-6)
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- 2-(2,3-Dibromo-4-chlorobutyl)benzo[d]isothiazol-3(2H)-one 1,1-dioxide (CAS 866156-19-6)
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Recommended Standards
- 2-{[(4-chlorophenyl)methyl]sulfanyl}-5-[1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl]-1,3,4-oxadiazole (CAS 478080-23-8)
- N-(3-((5-Chloro-2-hydroxyphenyl)amino)quinoxalin-2-yl)-1-methyl-1H-pyrazole-4-sulfonamide (CAS 1795425-41-0)
- 2-[2-({[5-(2H-1,3-benzodioxol-5-yl)-1,3,4-oxadiazol-2-yl]sulfanyl}methyl)-6-chloro-1H-1,3-benzodiazol-1-yl]ethan-1-ol (CAS 791105-69-6)
- Halometasone Impurity N2 (CAS 80157-55-7)
- 2,6-Dibromopyridine (CAS 626-05-1)
- 2-(p-Tolyl)-7,8-dihydro-3H-pyrano[4,3-d]pyrimidin-4(5H)-one (CAS 1450790-51-8)
- 4-[(9-Anthracenylmethylene)amino]-1,2-dihydro-1,5-dimethyl-2-phenyl-3H-pyrazol-3-one (CAS 303019-69-4)
- 2-(3-(Thiophen-2-yl)-1H-pyrazol-1-yl)ethan-1-amine (CAS 1020706-50-6)
- Estriol Triacetate (CAS 2284-32-4)
- (S)-N-(1-Hydroxy-3-phenylpropan-2-yl)acetamide (CAS 52485-51-5)
- 3-Amino-3,4-dihydro-1-hydroxy-2(1H)-quinolinone (CAS 25263-70-1)
- 1-(Azetidin-3-yl)-4-methylpiperidin-4-ol (CAS 1257293-87-0)
- 5-(Azepan-4-yl)-3-methyl-1,2,4-oxadiazole (CAS 1429903-96-7)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
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