2-(4-Bromobenzamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid CAS 331962-37-9
| CAS No. | 331962-37-9 |
| Molecular Formula | C17H16BrNO3S |
| Molecular Weight | 394.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Bromobenzamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid 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.
2-(4-Bromobenzamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid (CAS 331962-37-9) is a high-purity analytical reference standard with the molecular formula C17H16BrNO3S and a molecular weight of 394.28 g/mol.
2-(4-Bromobenzamido)-6-methyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid (C17H16BrNO3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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.
Physical & Chemical Properties
| Molecular Formula | C17H16BrNO3S |
| Molecular Weight | 394.28 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 10.0 |
| 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 Bromobenzamido Standards
- Ethyl 2-(4-bromobenzamido)-4,5-dimethylthiophene-3-carboxylate (CAS 299405-12-2)
- Ethyl 2-(4-bromobenzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 119934-21-3)
- Ethyl 2-(3-bromobenzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 312917-28-5)
- 2-(4-Bromobenzamido)-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxamide (CAS 300567-34-4)
- 5-(4-Bromobenzamido)-2-ethoxybenzene-1-sulfonyl chloride (CAS 680617-92-9)
- Methyl 2-(3-bromobenzamido)-4,5-dimethylthiophene-3-carboxylate (CAS 353781-69-8)
- Methyl 2-(4-bromobenzamido)-6-ethyl-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate (CAS 438614-22-3)
- 2-(4-Bromobenzamido)ethyl-4-bromobenzoate (CAS 951885-58-8)
Recommended Standards
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- 2-((5-(2,4-Dichlorophenyl)-4-(o-tolyl)-4h-1,2,4-triazol-3-yl)thio)acetic acid (CAS 743452-34-8)
- 2-{[bis(4-chlorophenyl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetohydrazide (CAS 893726-43-7)
- Cudratricusxanthone A (CAS 740810-42-8)
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