6-Bromo-2-chloro-3-(trimethylsilyl)pyridine CAS 1142191-85-2
| CAS No. | 1142191-85-2 |
| Molecular Formula | C8H11BrClNSi |
| Molecular Weight | 264.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 6-Bromo-2-chloro-3-(trimethylsilyl)pyridine (C8H11BrClNSi) contains a nitrile group, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 264.62 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
6-Bromo-2-chloro-3-(trimethylsilyl)pyridine (CAS 1142191-85-2) is a high-purity analytical reference standard with the molecular formula C8H11BrClNSi and a molecular weight of 264.62 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.
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 | C8H11BrClNSi |
| Molecular Weight | 264.62 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
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- 8-Chloro-5-methyl-7-nitro-6-oxo-5,6-dihydro-1,5-naphthyridine-2-carbonitrile (CAS 2407858-09-5)
- tert-Butyl 4-(4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine-2-carbonyl)piperazine-1-carboxylate (CAS 2034154-80-6)
- 1-tert-butyl-6-methyl-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-4-one (CAS 1094253-40-3)
- 4-(2-Thienyl)piperidine-2,6-dione (CAS 1267704-33-5)
- 2-(4-Amino-pyrazol-1-yl)-N-(tetrahydro-furan-2-ylmethyl)-acetamide hydrochloride (CAS 1361115-83-4)
- Tert-butyl (3-(4-amino-3-(isopropylsulfonyl)-1H-pyrazol-1-yl)propyl)carbamate (CAS 2306278-55-5)
- 1-(1-(4-Bromophenyl)ethyl)pyrrolidine (CAS 78065-00-6)
- 7-Methoxy-2,4-dimethyl-2H-benzo[e][1,2,4]thiadiazin-3(4H)-one 1,1-dioxide (CAS 1000575-78-9)
- 5-(3-Methoxyphenyl)-2,3-diphenylfuran (CAS 88406-99-9)
- N-(4-Fluorobenzyl)-N-methylpiperidin-3-amine hydrochloride (CAS 1261232-12-5)
- Semaglutide impurity 208 (CAS CATO-C4X-2226208)
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