Bromo[(trimethylsilyl)methyl]-magnesium CAS 18243-38-4
| CAS No. | 18243-38-4 |
| Molecular Formula | C4H11BrMgSi |
| Molecular Weight | 191.42 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bromo[(trimethylsilyl)methyl]-magnesium (C4H11BrMgSi) contains a salt form, bromine substitution. Halogen substitution raises its density and boiling point; 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.
Bromo[(trimethylsilyl)methyl]-magnesium (CAS 18243-38-4), molecular formula C4H11BrMgSi and molecular weight 191.42 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C4H11BrMgSi |
| Molecular Weight | 191.42 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | -1.0 |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
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Recommended Standards
- 3,3,3-Trichloro-2-oxopropanoic acid (CAS 105319-39-9)
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- 1,3-Dichloropropan-2-yl chloroformate (CAS 55183-48-7)
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- 5-Chloro-4-methoxypyridine-3-sulfonamide (CAS 1352520-90-1)
- 2-Amino-5-bromo-3-fluorobenzoic Acid (CAS 874784-14-2)
- spiro[1,2-dihydropyrrolo[3,2-b]pyridine-3,3-piperidine] (CAS 1824339-47-0)
- N-Hydroxy-3-methoxybenzimidoyl chloride (CAS 76272-16-7)
- 6-Chloro-N-(furan-2-ylmethyl)pyrimidin-4-amine (CAS 99846-86-3)
- 2-(5,6-Dimethyl-1-benzofuran-3-yl)acetic acid (CAS 750599-10-1)
- 2-(2,2-Difluorobenzo[d][1,3]dioxol-5-yl)acetonitrile (CAS 68119-31-3)
- 2-Isopropylimidazo[1,2-a]pyridine-6-carboxylic acid (CAS 1249074-63-2)
- Acetyl Tripeptide-1 (CAS 350595-76-5)
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