m-PEG6-Tos CAS 155887-96-0

Purity 97%+In StockPharmaceutical Standards
CAS No.155887-96-0
Molecular FormulaC20H34O9S
Molecular Weight450.54 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

m-PEG6-Tos CAS 155887-96-0 chemical structure

Description

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, m-PEG6-Tos is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 450.54 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

m-PEG6-Tos (CAS 155887-96-0) is a high-purity analytical reference standard with the molecular formula C20H34O9S and a molecular weight of 450.54 g/mol.

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.

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 FormulaC20H34O9S
Molecular Weight450.54 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Sulfur Atoms1

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