5-Bromo-3-((3,5-dimethylphenyl)sulfonyl)-1H-indole-2-carboxamide CAS 540740-95-2
| CAS No. | 540740-95-2 |
| Molecular Formula | C17H15BrN2O3S |
| Molecular Weight | 407.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Bromo-3-((3,5-dimethylphenyl)sulfonyl)-1H-indole-2-carboxamide (C17H15BrN2O3S) contains a steroid core, an amide group, a sulfone 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. 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).
5-Bromo-3-((3,5-dimethylphenyl)sulfonyl)-1H-indole-2-carboxamide (CAS 540740-95-2), molecular formula C17H15BrN2O3S and molecular weight 407.28 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.
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 | C17H15BrN2O3S |
| Molecular Weight | 407.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2-(3-Iodophenoxy)aniline (CAS 1094235-82-1)
- Chloride ionophore II (CAS 145889-57-2)
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- (3S,4S)-1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)-4-methylpyrrolidine-3-carboxylic acid (CAS 1820571-81-0)
- 5-(Hydroxymethyl)-4-(pyridin-3-yl)-2,4-dihydro-3H-1,2,4-triazole-3-thione (CAS 1508001-08-8)
- 2-(3-((((Benzyloxy)carbonyl)amino)methyl)pyrrolidin-1-yl)acetic acid (CAS 1353984-69-6)
- 2-(Thiomorpholin-4-yl)cyclohexan-1-one (CAS 1248999-41-8)
- 3-(4-Fluorophenyl)-1H-1,2,4-triazole-5-carboxylic acid (CAS 944897-42-1)
- N-(4-Aminobenzenesulfonyl) Sulfamethoxazole-d4 (CAS 1346603-52-8)
- Peptide 439 (CAS CATO-CPTD788439)
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