3-Bromo-5-methylbenzenesulfonamide CAS 452341-93-4
| CAS No. | 452341-93-4 |
| Molecular Formula | C7H8BrNO2S |
| Molecular Weight | 250.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-5-methylbenzenesulfonamide (C7H8BrNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
3-Bromo-5-methylbenzenesulfonamide (CAS 452341-93-4), molecular formula C7H8BrNO2S and molecular weight 250.11 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 3-Bromo-5-methylbenzenesulfonamide 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 | C7H8BrNO2S |
| Molecular Weight | 250.11 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-isopropylthiazole-4-carboxylic acid (CAS 1015936-68-1)
- 3-Bromo-2-methylbenzenesulfonamide (CAS 1032507-35-9)
- Ethyl 5-bromo-2-methylthiazole-4-carboxylate (CAS 1047675-70-6)
- 3-Bromo-2-methyl-6-(methylsulfonyl)pyridine (CAS 1104451-37-7)
- 4-Bromo-2-methylbenzenesulfonamide (CAS 116340-67-1)
- Methyl 2-bromo-4-ethylthiazole-5-carboxylate (CAS 1171125-06-6)
- 2-Bromo-5-(ethylsulfonyl)pyridine (CAS 1227384-81-7)
- 5-Bromo-N-methoxy-N-methylthiophene-2-carboxamide (CAS 1236066-84-4)
Recommended Standards
- 3-Bromo-5-(methylsulfonyl)aniline (CAS 62606-00-2)
- 3-Bromo-N-methoxy-N-methylthiophene-2-carboxamide (CAS 848356-39-8)
- 3-Bromo-4-methylbenzenesulfonamide (CAS 210824-69-4)
- 4-(Bromomethyl)benzenesulfonamide, 97% (CAS 40724-47-8)
- ((2R,5S)-1,4-dioxane-2,5-diyl)dimethanol (CAS 87133-52-6)
- n-Methyl-1-(3-(pyridin-3-yl)-1,2,4-oxadiazol-5-yl)methanamine (CAS 915919-63-0)
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- Tert-butyl (6-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)carbamate (CAS 1309982-22-6)
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