m-PEG5-Ms CAS 130955-38-3

Purity 97%+In StockPharmaceutical Standards
CAS No.130955-38-3
Molecular FormulaC12H26O8S
Molecular Weight330.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

m-PEG5-Ms CAS 130955-38-3 chemical structure

Description

The occurrence of m-PEG5-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.

m-PEG5-Ms (CAS 130955-38-3), molecular formula C12H26O8S and molecular weight 330.40 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, m-PEG5-Ms is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 330.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques.

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 FormulaC12H26O8S
Molecular Weight330.40 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)0.0
CAS Registry Year (est.)1994
Sulfur Atoms1

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