2-(But-3-yn-1-yl)-5-methyl-2,5-dihydrofuran CAS 91706-72-8

Purity 97%+In StockPharmaceutical Standards
CAS No.91706-72-8
Molecular FormulaC9H12O
Molecular Weight136.19 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(But-3-yn-1-yl)-5-methyl-2,5-dihydrofuran CAS 91706-72-8 chemical structure

Description

Structurally, 2-(But-3-yn-1-yl)-5-methyl-2,5-dihydrofuran (C9H12O) contains a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 136.19 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).

2-(But-3-yn-1-yl)-5-methyl-2,5-dihydrofuran (CAS 91706-72-8), molecular formula C9H12O and molecular weight 136.19 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.

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 FormulaC9H12O
Molecular Weight136.19 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1983

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