Ethyl 2-bromo-3-(2-((tert-butyldiphenylsilyl)oxy)ethyl)-4-methoxybenzo[b]thiophene-6-carboxylate CAS 2691128-64-8
| CAS No. | 2691128-64-8 |
| Molecular Formula | C30H33BrO4SSi |
| Molecular Weight | 597.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Ethyl 2-bromo-3-(2-((tert-butyldiphenylsilyl)oxy)ethyl)-4-methoxybenzo[b]thiophene-6-carboxylate 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.
Ethyl 2-bromo-3-(2-((tert-butyldiphenylsilyl)oxy)ethyl)-4-methoxybenzo[b]thiophene-6-carboxylate (CAS 2691128-64-8) is a high-purity analytical reference standard with the molecular formula C30H33BrO4SSi and a molecular weight of 597.64 g/mol.
Ethyl 2-bromo-3-(2-((tert-butyldiphenylsilyl)oxy)ethyl)-4-methoxybenzo[b]thiophene-6-carboxylate (C30H33BrO4SSi) contains a steroid core, 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C30H33BrO4SSi |
| Molecular Weight | 597.64 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- (S)-2-((R)-2-((S)-2-((S)-2-((S)-1-Acetylpyrrolidine-2-carboxamido)-3-(1H-imidazol-4-yl)propanamido)-3-hydroxypropanamido)-3-mercaptopropanamido)succinamide (CAS 262438-43-7)
- Relugolix Impurity 39 (CAS 2814571-33-8)
- Nintedanib Impurity 106 (CAS CATO-C4X-1814106)
- Avacopan Impurity 1 (CAS CATO-C4X-29451)
- [4-(3-Fluoro-4-methylphenyl)phenyl]acetic acid (CAS 1365272-72-5)
- 2-(2-Chloropyridin-3-yl)-1-(2,4-dichlorobenzyl)-1H-benzo[d]imidazole (CAS 338411-20-4)
- (2-Ethynylpyridin-3-yl)methanol (CAS 1824298-38-5)
- 2-(2-IOdophenyl)piperidine oxalate (CAS 1177347-19-1)
- 3-Amino-6-bromo-N-phenylpyrazine-2-carboxamide (CAS 36204-92-9)
- 4-Hydroxy-1H-indazole-3-carboxylic acid (CAS 885519-93-7)
- 1-(4,6-Dimethylpyridin-2-yl)-4,5-dihydroxy-3-methylimidazolidin-2-one (CAS 866038-53-1)
- 4-Phenyloxane-2,6-dione (CAS 4160-80-9)
- 2-(4-Chlorobenzoyl)-4-methylmorpholine (CAS 1427379-80-3)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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