S-acetyl-PEG4-alcohol CAS 223611-42-5

Purity 97%+In StockPharmaceutical Standards
CAS No.223611-42-5
Molecular FormulaC10H20O5S
Molecular Weight252.33 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

S-acetyl-PEG4-alcohol CAS 223611-42-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 252.33 g/mol gives S-acetyl-PEG4-alcohol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

S-acetyl-PEG4-alcohol (CAS 223611-42-5), molecular formula C10H20O5S and molecular weight 252.33 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, S-acetyl-PEG4-alcohol is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 252.33 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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 FormulaC10H20O5S
Molecular Weight252.33 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)1.0
CAS Registry Year (est.)2020
Sulfur Atoms1

Recommended Standards

Why CATO?