Acid-PEG4-mono-methyl ester CAS 2028284-75-3

Purity 97%+In StockPharmaceutical Standards
CAS No.2028284-75-3
Molecular FormulaC13H24O8
Molecular Weight308.32 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Acid-PEG4-mono-methyl ester CAS 2028284-75-3 chemical structure

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Acid-PEG4-mono-methyl ester.

Acid-PEG4-mono-methyl ester (CAS 2028284-75-3) is a high-purity analytical reference standard with the molecular formula C13H24O8 and a molecular weight of 308.32 g/mol.

Structurally, Acid-PEG4-mono-methyl ester (C13H24O8) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 308.32 g/mol, it falls into the moderately-high-molecular-weight range.

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 FormulaC13H24O8
Molecular Weight308.32 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)2.0
CAS Registry Year (est.)1996

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