S-acetyl-PEG4-propargyl CAS 1422540-88-2

Purity 97%+In StockPharmaceutical Standards
CAS No.1422540-88-2
Molecular FormulaC13H22O5S
Molecular Weight290.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

S-acetyl-PEG4-propargyl CAS 1422540-88-2 chemical structure

Description

S-acetyl-PEG4-propargyl (CAS 1422540-88-2) is a high-purity analytical reference standard with the molecular formula C13H22O5S and a molecular weight of 290.38 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, S-acetyl-PEG4-propargyl is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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.

As a certified reference material (CRM), S-acetyl-PEG4-propargyl meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC13H22O5S
Molecular Weight290.38 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1991
Sulfur Atoms1

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