5-Methoxy-2-methylene-5-oxopentanoic acid CAS 93633-32-0

Purity 97%+In StockPharmaceutical Standards
CAS No.93633-32-0
Molecular FormulaC7H9O4
Molecular Weight157.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

5-Methoxy-2-methylene-5-oxopentanoic acid CAS 93633-32-0 chemical structure

Description

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, 5-Methoxy-2-methylene-5-oxopentanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 157.14 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

5-Methoxy-2-methylene-5-oxopentanoic acid (CAS 93633-32-0), molecular formula C7H9O4 and molecular weight 157.14 g/mol, is a CATO reference standard with documented purity and traceability.

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.

As a certified reference material (CRM), 5-Methoxy-2-methylene-5-oxopentanoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC7H9O4
Molecular Weight157.14 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityMay oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)3.5
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1983

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