(2-Bromoethoxy)(tert-butyl)diphenylsilane CAS 139897-19-1

Purity 97%+In StockPharmaceutical Standards
CAS No.139897-19-1
Molecular FormulaC18H23BrOSi
Molecular Weight363.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2-Bromoethoxy)(tert-butyl)diphenylsilane CAS 139897-19-1 chemical structure

Description

The occurrence of (2-Bromoethoxy)(tert-butyl)diphenylsilane is closely related to a steroid core, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

(2-Bromoethoxy)(tert-butyl)diphenylsilane (CAS 139897-19-1) is a high-purity analytical reference standard with the molecular formula C18H23BrOSi and a molecular weight of 363.36 g/mol.

The molecular framework of (2-Bromoethoxy)(tert-butyl)diphenylsilane (C18H23BrOSi) is characterized by a steroid core, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

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.

As a certified reference material (CRM), (2-Bromoethoxy)(tert-butyl)diphenylsilane 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 FormulaC18H23BrOSi
Molecular Weight363.36 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Halogen ContentBr-containing

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