2-Hydroxy-3-methyl-2-cyclopentenone CAS 80-71-7

Purity >95%In StockPharmaceutical Standards
CAS No.80-71-7
Molecular FormulaC6H8O2
Molecular Weight112.13 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-Hydroxy-3-methyl-2-cyclopentenone CAS 80-71-7 chemical structure

Description

2-Hydroxy-3-methyl-2-cyclopentenone (CAS 80-71-7) is a high-purity analytical reference standard with the molecular formula C6H8O2 and a molecular weight of 112.13 g/mol.

Structurally, 2-Hydroxy-3-methyl-2-cyclopentenone (C6H8O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 112.13 g/mol, it falls into the low-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).

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 FormulaC6H8O2
Molecular Weight112.13 g/mol
Purity>95%
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957

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