2-Bromo-5-(tert-butyl)benzo[b]thiophene CAS 1599431-24-9
| CAS No. | 1599431-24-9 |
| Molecular Formula | C12H13BrS |
| Molecular Weight | 269.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-Bromo-5-(tert-butyl)benzo[b]thiophene (CAS 1599431-24-9), a certified reference material (molecular formula C12H13BrS, MW 269.20 g/mol) for analytical method development and quality control.
Owing to sulfur-containing functionality, bromine substitution, an aromatic ring system, 2-Bromo-5-(tert-butyl)benzo[b]thiophene is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 269.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H13BrS |
| Molecular Weight | 269.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromo Standards
- 3-Bromo-5-(tert-butyl)benzo[b]thiophene (CAS 1780644-81-6)
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- 2-Bromo-5-(isopropylsulfonyl)thiophene (CAS 1020743-47-8)
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Recommended Standards
- 5-(Ethoxycarbonyl)-4-(trifluoromethyl)thiazole-2-carboxylic acid (CAS 1531696-14-6)
- 2-(5-(2,4-Difluorophenyl)-4-nitro-1H-pyrazol-1-yl)ethanol (CAS 1707403-12-0)
- 1-[4-(difluoromethoxy)phenyl]-5-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1020253-48-8)
- Chlorbenside (CAS 103-17-3)
- N-(1-(3-methyl-1,2,4-oxadiazol-5-yl)cyclohexyl)thiophene-3-carboxamide (CAS 1396800-37-5)
- DBCO-NH-Boc (CAS 1539290-74-8)
- CAS 212051-97-3 (CAS 212051-97-3)
- ((3AR,7aS)-hexahydro-1H-isoindole-3a,7a-diyl)dimethanol hydrochloride (CAS 2137147-02-3)
- Methyl 2-amino-2-(3-fluorobicyclo[1.1.1]pentan-1-yl)acetate (CAS 1934370-58-7)
- 2-Fluoro-4-phenylphenol (CAS 84376-21-6)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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