PEG4-Ms CAS 65883-12-7

Purity 97%+In StockPharmaceutical Standards
CAS No.65883-12-7
Molecular FormulaC9H20O7S
Molecular Weight272.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

PEG4-Ms CAS 65883-12-7 chemical structure

Description

The occurrence of PEG4-Ms is closely related to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies PEG4-Ms (CAS 65883-12-7), a certified reference material (molecular formula C9H20O7S, MW 272.32 g/mol) for analytical method development and quality control.

Based on its molecular formula C9H20O7S, PEG4-Ms contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 272.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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 FormulaC9H20O7S
Molecular Weight272.32 g/mol
Purity97%+
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)0.0
CAS Registry Year (est.)1975
Sulfur Atoms1

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