5-Bromo-4-hydrazinylpyridine-3-sulfonamide CAS 1352497-80-3
| CAS No. | 1352497-80-3 |
| Molecular Formula | C5H7BrN4O2S |
| Molecular Weight | 267.10 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-hydrazinylpyridine-3-sulfonamide.
5-Bromo-4-hydrazinylpyridine-3-sulfonamide (CAS 1352497-80-3), molecular formula C5H7BrN4O2S and molecular weight 267.10 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromo-4-hydrazinylpyridine-3-sulfonamide (C5H7BrN4O2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. 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 | C5H7BrN4O2S |
| Molecular Weight | 267.10 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 5-Bromo-2-methoxybenzenesulfonic acid (CAS 1227290-96-1)
- 5-bromo-2-methoxypyridine-3-sulfonamide (CAS 1272356-83-8)
- 5-Bromo-4-(methylamino)pyridine-3-sulfonic acid (CAS 1352498-16-8)
- 5-Bromo-4-methoxypyridine-3-sulfonamide (CAS 1352516-39-2)
- 3-Bromo-4-methoxybenzenesulfonic acid (CAS 1368516-55-5)
- 5-Bromo-6-(4-fluorophenyl)-pyridin-2-ylamine (CAS 1817741-80-2)
- 4-Bromo-5-fluoro-2,3-dimethyl-1H-indole-7-carbonitrile (CAS 1912446-10-6)
- 3-bromo-4-fluoro-1H-indazole-6-carboxylic acid (CAS 885521-65-3)
Recommended Standards
- 2-Ethoxy-3-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1334167-86-0)
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- 4-(Bromomethyl)-2-fluoro-3,4'-bipyridine (CAS 1227604-99-0)
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- 1-(3,5-Dimethyl-1H-pyrazol-1-yl)-2-methylpropan-2-ol (CAS 527677-31-2)
- 2-Phenylbenzo[h]quinoline (CAS 5278-58-0)
- 2,2-Dimethyl-1-(pyridin-2-yl)propan-1-ol (CAS 20609-11-4)
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