Triphenyl(3-(trimethylsilyl)prop-2-yn-1-yl)phosphonium bromide CAS 42134-49-6
| CAS No. | 42134-49-6 |
| Molecular Formula | C24H26PSi |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Triphenyl(3-(trimethylsilyl)prop-2-yn-1-yl)phosphonium bromide (CAS 42134-49-6), molecular formula C24H26PSiBr and molecular weight 453.44 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C24H26PSiBr, Triphenyl(3-(trimethylsilyl)prop-2-yn-1-yl)phosphonium bromide contains organophosphorus functionality, bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 453.44 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Triphenyl(3-(trimethylsilyl)prop-2-yn-1-yl)phosphonium bromide 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 | C24H26PSi Br |
| Molecular Weight | 453.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| 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) | 11.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Halogen Content | Br-containing |
Related Triphenyl Standards
- Triphenyl phosphite (CAS 101-02-0)
- Triphenyl(p-tolyl)phosphonium iodide (CAS 10111-23-6)
- 2,2,6-Triphenyl-2H-pyran-4(3H)-one (CAS 102593-55-5)
- 1-(3,3,5-Triphenyl-3H-pyrrol-2-yl)isoquinoline (CAS 10425-48-6)
- 1-(3,4,5-Triphenyl-1H-pyrrol-2-yl)isoquinoline (CAS 10425-52-2)
- 2,4,6-Triphenyl-1-(p-tolyl)pyridin-1-ium tetrafluoroborate (CAS 107108-26-9)
- Triphenyl(3,4,5-trimethoxybenzyl)phosphonium chloride (CAS 108683-61-0)
- (S)-1,1,2-Triphenyl-1,2-ethanediol (CAS 108998-83-0)
Recommended Standards
- Ethyl 8-chloroimidazo[1,5-a]pyrazine-1-carboxylate (CAS 1160248-06-5)
- 7-(tert-Butyl)-3,3-dimethyl-5-(thiophen-2-yl)-2,3-dihydrobenzofuran (CAS 194592-43-3)
- 4-Bromo-5-fluoro-1-methylpyridin-2(1H)-one (CAS 1193334-87-0)
- 3-Methoxy-N-(2-methoxybenzyl)propan-1-amine hydrochloride (CAS 1158562-27-6)
- 3-(4-Fluorophenyl)tetrahydrofuran-3-carbonitrile (CAS 1060817-36-8)
- 2-(((2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)methyl)(isopropyl)amino)acetic acid (CAS 1181974-44-6)
- Methyl 5,5-bis(4-hydroxyphenyl)pentanoate (CAS 633300-55-7)
- Tert-butyl (R)-4-methyl-2,4,6,7-tetrahydro-5H-pyrazolo[4,3-c]pyridine-5-carboxylate (CAS 2417910-95-1)
- Minoxidil Impurity 54 (CAS CATO-C4X-170054)
- Semaglutide Impurity 148 (CAS CATO-C4X-2226148)
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