(11-Chloroundecyl)trimethoxysilane CAS 17948-05-9

Purity 97%+In StockPharmaceutical Standards
CAS No.17948-05-9
Molecular FormulaC14H31ClO3Si
Molecular Weight310.93 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(11-Chloroundecyl)trimethoxysilane CAS 17948-05-9 chemical structure

Description

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.

(11-Chloroundecyl)trimethoxysilane (CAS 17948-05-9), molecular formula C14H31ClO3Si and molecular weight 310.93 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, (11-Chloroundecyl)trimethoxysilane is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 310.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

Physical & Chemical Properties

Molecular FormulaC14H31ClO3Si
Molecular Weight310.93 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityHygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1962
Halogen ContentCl-containing

Related Chloroundecyl Standards

Recommended Standards

Why CATO?