4-((Trimethylsilyl)ethynyl)benzenesulfonamide CAS 775331-26-5
| CAS No. | 775331-26-5 |
| Molecular Formula | C11H15NO2SSi |
| Molecular Weight | 253.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-((Trimethylsilyl)ethynyl)benzenesulfonamide (C11H15NO2SSi) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
4-((Trimethylsilyl)ethynyl)benzenesulfonamide (CAS 775331-26-5) is a high-purity analytical reference standard with the molecular formula C11H15NO2SSi and a molecular weight of 253.39 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 4-((Trimethylsilyl)ethynyl)benzenesulfonamide 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 | C11H15NO2SSi |
| Molecular Weight | 253.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Trimethylsilyl Standards
- 5-((2-(Trimethylsilyl)ethoxy)methoxy)nicotinaldehyde (CAS 2850324-92-2)
- 1-(Trimethylsilyl)-5,6-dihydrobenzo[f]isoquinoline (CAS 131373-01-8)
- 9-((Trimethylsilyl)methyl)-9H-carbazole (CAS 75511-17-0)
- 1-(1-((2-(Trimethylsilyl)ethoxy)methyl)-1H-imidazol-4-yl)cyclopropan-1-amine (CAS 1159734-02-7)
- 5-((Trimethylsilyl)ethynyl)-2,2'-bipyridine (CAS 187026-84-2)
- 6-((Trimethylsilyl)ethynyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 1203499-42-6)
- 5-Oxo-7-(trimethylsilyl)-6-heptynoic Acid 1-Methylethyl Ester (CAS 1251537-12-8)
- Trimethylsilyl-d(-)fructose (CAS 53538-03-7)
Recommended Standards
- 2-Cyanobutan-2-yl 3,5-dimethyl-1H-pyrazole-1-carbodithioate (CAS 1883264-36-5)
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- 2-(tert-Butyl)-4'-methyl-[4,5'-bithiazol]-2'-amine (CAS 1163707-28-5)
- 4-Ethyl-5-(5-isopropylthiophen-3-yl)-4H-1,2,4-triazole-3-thiol (CAS 438230-75-2)
- Ethyl (3-phenylbenzofuran-2-yl) carbonate (CAS 108139-57-7)
- 4,8-Diethoxy-1-naphthaldehyde (CAS 1160995-78-7)
- 1-(2,4-Dimethoxyphenyl)but-3-en-1-ol (CAS 1023294-87-2)
- Sunitinib Impurity 26 (CAS 1348032-93-8)
- N-(Cyclopropylmethyl)cyclopropanamine (CAS 215522-80-8)
- [5-(trifluoromethyl)-1H-pyrazol-3-yl]boronic acid (CAS 1346270-08-3)
- (S)-2-(3-(Benzyl(isopropyl)amino)piperidin-1-yl)ethanol (CAS 1353998-01-2)
- Dibenzo[b,e]fluoranthene (CAS 2997-45-7)
- 2,2,3,3,3-Pentafluoro-1-(3-isopropoxyphenyl)propan-1-one (CAS 1443354-12-8)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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