Tributylstannyl bis(trimethylsilyl) phosphate CAS 74785-85-6

Purity 97%+In StockPharmaceutical Standards
CAS No.74785-85-6
Molecular FormulaC18H45O4PSi2Sn
Molecular Weight531.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tributylstannyl bis(trimethylsilyl) phosphate CAS 74785-85-6 chemical structure

Description

Tributylstannyl bis(trimethylsilyl) phosphate (CAS 74785-85-6) is a high-purity analytical reference standard with the molecular formula C18H45O4PSi2Sn and a molecular weight of 531.40 g/mol.

The molecular framework of Tributylstannyl bis(trimethylsilyl) phosphate (C18H45O4PSi2Sn) is characterized by a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC18H45O4PSi2Sn
Molecular Weight531.40 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)-3.5
CAS Registry Year (est.)1978

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