1-Ethynyl-4-methoxy-2-methylbenzene 74331-69-4 Decahydro-3,6,9-tris(methylene)azuleno[4,5-b]furan-2(3H)-one CAS 74331-69-4

Purity 97%+In StockPharmaceutical Standards
CAS No.74331-69-4
Molecular FormulaC10H16O
Molecular Weight152.23 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethynyl-4-methoxy-2-methylbenzene 74331-69-4 Decahydro-3,6,9-tris(methylene)azuleno[4,5-b]furan-2(3H)-one CAS 74331-69-4 chemical structure

Description

The occurrence of 1-Ethynyl-4-methoxy-2-methylbenzene 74331-69-4 Decahydro-3,6,9-tris(methylene)azuleno[4,5-b]furan-2(3H)-one is closely related to a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 1-Ethynyl-4-methoxy-2-methylbenzene 74331-69-4 Decahydro-3,6,9-tris(methylene)azuleno[4,5-b]furan-2(3H)-one (CAS 74331-69-4), a certified reference material (molecular formula C10H16O, MW 152.23 g/mol) for analytical method development and quality control.

Structurally, 1-Ethynyl-4-methoxy-2-methylbenzene 74331-69-4 Decahydro-3,6,9-tris(methylene)azuleno[4,5-b]furan-2(3H)-one (C10H16O) contains 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 152.23 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 FormulaC10H16O
Molecular Weight152.23 g/mol
Purity97%+
StorageStore at 2-8°C
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1978

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