Tetraethyl Thionopyrophosphate CAS 645-78-3

Purity >95%In StockPharmaceutical Standards
CAS No.645-78-3
Molecular FormulaC8H20O6P2S
Molecular Weight306.25 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Tetraethyl Thionopyrophosphate CAS 645-78-3 chemical structure

Description

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.

CATO supplies Tetraethyl Thionopyrophosphate (CAS 645-78-3), a certified reference material (molecular formula C8H20O6P2S, MW 306.25 g/mol) for analytical method development and quality control.

The molecular framework of Tetraethyl Thionopyrophosphate (C8H20O6P2S) is characterized by a sulfone group, a phosphate ester group, a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

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 FormulaC8H20O6P2S
Molecular Weight306.25 g/mol
Purity>95%
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1957
Sulfur Atoms1

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