5-Bromo-4-nitro-2,1,3-benzothiadiazole CAS 72023-79-1
| CAS No. | 72023-79-1 |
| Molecular Formula | C6H2BrN3O2S |
| Molecular Weight | 260.07 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 5-Bromo-4-nitro-2,1,3-benzothiadiazole.
5-Bromo-4-nitro-2,1,3-benzothiadiazole (CAS 72023-79-1), molecular formula C6H2BrN3O2S and molecular weight 260.07 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C6H2BrN3O2S, 5-Bromo-4-nitro-2,1,3-benzothiadiazole contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 260.07 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Bromo-4-nitro-2,1,3-benzothiadiazole 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 | C6H2BrN3O2S |
| Molecular Weight | 260.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 4-Iodo-2,5-dimethylbenzaldehyde (CAS 2126161-54-2)
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- 4-Iodo-1,5,6,7-tetrahydro-1,8-naphthyridine (CAS 945600-06-6)
- 5-Iodo-6-methyl-1,3-dihydroisobenzofuran (CAS 2886002-22-6)
- 2-(Pyridin-4-yl)-6-(trifluoromethyl)nicotinamide (CAS 1214344-56-5)
- 2-Propyl-5,6,7,8-tetrahydrocyclohepta[d]imidazol-4(1H)-one (CAS 165951-91-7)
- N-Carbamimidoyl-2-(2,6-dichlorophenyl)acetamide (CAS 29110-47-2)
- 2-Cyclopropyl-1-(4-methoxyphenyl)ethan-1-one (CAS 85157-83-1)
- 4,4,6,6-tetramethylazepan-2-one (CAS 77729-42-1)
- 4-Ethoxy-4-iodobenzophenone (CAS 951884-62-1)
- N-(3,4-difluorobenzyl)-N-methylbenzo[d][1,3]dioxol-5-amine (CAS 491604-79-6)
- 2-[(4-methylphenyl)thio]acetohydrazide (CAS 14776-65-9)
- Pyrazolo[1,5-a]pyridin-7-amine (CAS 1554453-28-9)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
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