tert-butyl(3,5-difluorophenoxy)dimethylsilane CAS 917827-99-7

Purity 97%+In StockPharmaceutical Standards
CAS No.917827-99-7
Molecular FormulaC12H18F2OSi
Molecular Weight244.35 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

tert-butyl(3,5-difluorophenoxy)dimethylsilane CAS 917827-99-7 chemical structure

Description

tert-butyl(3,5-difluorophenoxy)dimethylsilane (CAS 917827-99-7) is a high-purity analytical reference standard with the molecular formula C12H18F2OSi and a molecular weight of 244.35 g/mol.

Structurally, tert-butyl(3,5-difluorophenoxy)dimethylsilane (C12H18F2OSi) contains a hydroxyl group, an ether linkage, fluorine 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 244.35 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.

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 FormulaC12H18F2OSi
Molecular Weight244.35 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1987
Halogen ContentF-containing

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