4-(4-(Methylsulfonyl)phenyl)-4-oxobutanoic acid CAS 7028-79-7

Purity 97%+In StockPharmaceutical Standards
CAS No.7028-79-7
Molecular FormulaC11H12O5S
Molecular Weight256.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(4-(Methylsulfonyl)phenyl)-4-oxobutanoic acid CAS 7028-79-7 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 4-(4-(Methylsulfonyl)phenyl)-4-oxobutanoic acid.

4-(4-(Methylsulfonyl)phenyl)-4-oxobutanoic acid (CAS 7028-79-7) is a high-purity analytical reference standard with the molecular formula C11H12O5S and a molecular weight of 256.27 g/mol.

Structurally, 4-(4-(Methylsulfonyl)phenyl)-4-oxobutanoic acid (C11H12O5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 256.27 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 FormulaC11H12O5S
Molecular Weight256.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1959
Sulfur Atoms1

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