3-bromo-5-cyanobenzene-1-sulfonamide CAS 49674-14-8
| CAS No. | 49674-14-8 |
| Molecular Formula | C7H5BrN2O2S |
| Molecular Weight | 261.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-bromo-5-cyanobenzene-1-sulfonamide (CAS 49674-14-8), molecular formula C7H5BrN2O2S and molecular weight 261.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5BrN2O2S, 3-bromo-5-cyanobenzene-1-sulfonamide 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 261.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 3-bromo-5-cyanobenzene-1-sulfonamide 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 | C7H5BrN2O2S |
| Molecular Weight | 261.10 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related bromo Standards
- 2-Bromo-4-cyanobenzene-1-sulfonamide (CAS 1098387-41-7)
- 4-bromo-3-cyanobenzene-1-sulfonamide (CAS 1261670-91-0)
- 3-bromo-4-cyanobenzene-1-sulfonamide (CAS 1261726-19-5)
- 3-Bromo-4-hydroxy-6-methylthieno[2,3-d]pyridazin-7(6H)-one (CAS 1628713-10-9)
- Methyl 2-bromo-4H-pyrrolo[2,3-d]thiazole-5-carboxylate (CAS 1934708-90-3)
- 7-Bromo-4H-benzo[e][1,2,4]thiadiazine 1,1-dioxide (CAS 37162-46-2)
- 8-Bromo-2-(methylsulfanyl)pyrazolo[1,5-a][1,3,5]-triazin-4-ol (CAS 54346-35-9)
- 8-Bromo-5-(methylsulfinyl)-[1,2,4]triazolo[4,3-c]pyrimidine (CAS 2414520-38-8)
Recommended Standards
- 3-(tert-Butyl)-5-iodopyridine (CAS 2089377-82-0)
- 3-chloro-N’-(2-chloropropanoyl)benzohydrazide (CAS 923673-51-2)
- 2-Iodo-n-(propan-2-yl)aniline (CAS 76465-01-5)
- 4-(3,5-Dichloro-4-methylphenyl)-4-oxobutanoic acid (CAS 62903-05-3)
- 6-bromo-7-fluoro-[1,2,4]triazolo[1,5-a]pyridin-2-amine (CAS 2387072-28-6)
- N-(4-Ethoxyphenyl)thiophene-2-sulfonamide (CAS 358666-72-5)
- Methyl 2-((2-((4-(2-chlorophenyl)thiazol-2-yl)amino)-2-oxoethyl)thio)benzoate (CAS 338965-71-2)
- 3-Methyl-5,6-dihydroquinoline (CAS 133092-30-5)
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- [3-(1-Piperidin-1-ylcyclohexyl)phenyl]aminehydrochloride (CAS 1211430-30-6)
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