Diethyl cyclopentane-1,1-dicarboxylate CAS 4167-77-5

Purity 97%+In StockPharmaceutical Standards
CAS No.4167-77-5
Molecular FormulaC11H18O4
Molecular Weight214.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Diethyl cyclopentane-1,1-dicarboxylate CAS 4167-77-5 chemical structure

Description

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, Diethyl cyclopentane-1,1-dicarboxylate is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.26 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

Diethyl cyclopentane-1,1-dicarboxylate (CAS 4167-77-5) is a high-purity analytical reference standard with the molecular formula C11H18O4 and a molecular weight of 214.26 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 FormulaC11H18O4
Molecular Weight214.26 g/mol
Purity97%+
StorageStore in a cool place (≤25°C), keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
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.)1958

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