5-Bromothiophene-2-sulfonamide CAS 53595-65-6
| CAS No. | 53595-65-6 |
| Molecular Formula | C4H4BrNO2S2 |
| Molecular Weight | 242.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromothiophene-2-sulfonamide (C4H4BrNO2S2) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. 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.
CATO supplies 5-Bromothiophene-2-sulfonamide (CAS 53595-65-6), a certified reference material (molecular formula C4H4BrNO2S2, MW 242.11 g/mol) for analytical method development and quality control.
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.
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 | C4H4BrNO2S2 |
| Molecular Weight | 242.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1972 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Bromothiophene Standards
- 3-Bromothiophene-2-sulfonamide (CAS 856352-92-6)
- 4-Bromothiophene-2-sulfonamide (CAS 214342-79-7)
- 5-Bromothiophene-2-sulfonic acid (CAS 73348-44-4)
- 5-Bromothiophene-2-sulfonyl fluoride (CAS 108158-00-5)
- ethyl 2-bromothiophene-3-carboxylate (CAS 632325-50-9)
- 3-bromothiophene-2-carbonyl isothiocyanate (CAS 1339908-68-7)
- 5-Acetyl-4-bromothiophene-2-carboxylic acid (CAS 1369239-73-5)
- propyl 5-bromothiophene-3-carboxylate (CAS 1478954-26-5)
Recommended Standards
- 5-Bromo-n,n,2-trimethylbenzamide (CAS 908257-16-9)
- 6-Bromo-2-methyl-1,2,3,4-tetrahydroquinolin-4-ol (CAS 736939-28-9)
- 5-Bromo-2-(tetrahydro-2H-pyran-4-yl)pyridine (CAS 223556-14-7)
- 8-Bromo-5-methoxy-1,2,3,4-tetrahydroisoquinoline (CAS 392660-50-3)
- 1-Bromo-2-cyclopropyl-3-fluorobenzene (CAS 1415096-07-9)
- Methysticin (CAS 495-85-2)
- 6-(Ethylthio)hept-3-en-2-one (CAS 81008-52-8)
- 6-Methylimidazo[1,2-a:5,4-b']dipyridin-2-amine Hydrochloride Hydrate (CAS 210049-10-8)
- N-Cyclopropyl-4-iodo-1H-pyrrole-2-carboxamide (CAS 1706452-66-5)
- 2-Amino-3-(anthracen-9-yl)propanoic acid (CAS 76932-40-6)
- 4-(Benzyloxy)phenyl cyclohexanecarboxylate (CAS 354796-53-5)
- 2-Methylpentanamide (CAS 6941-49-7)
- (4-(Ethoxymethoxy)phenyl)boronic acid (CAS 957062-54-3)
- Boc-Cholecystokinin Octapeptide (desulfated) (A-1295.0001) (CAS 25687-34-7)
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