m-PEG9-acid CAS 2576495-35-5

Purity 97%+In StockPharmaceutical Standards
CAS No.2576495-35-5
Molecular FormulaC20H40O11
Molecular Weight456.53 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

m-PEG9-acid CAS 2576495-35-5 chemical structure

Description

The molecular framework of m-PEG9-acid (C20H40O11) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.

m-PEG9-acid (CAS 2576495-35-5), molecular formula C20H40O11 and molecular weight 456.53 g/mol, is a CATO reference standard with documented purity and traceability.

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 FormulaC20H40O11
Molecular Weight456.53 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)2001

Recommended Standards

Why CATO?