1-(3-Methyl-1-benzothiophen-2-yl)ethanone CAS 18781-31-2

Purity 97%+In StockPharmaceutical Standards
CAS No.18781-31-2
Molecular FormulaC11H10OS
Molecular Weight190.26 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-(3-Methyl-1-benzothiophen-2-yl)ethanone CAS 18781-31-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 190.26 g/mol gives 1-(3-Methyl-1-benzothiophen-2-yl)ethanone distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-(3-Methyl-1-benzothiophen-2-yl)ethanone (CAS 18781-31-2) is a high-purity analytical reference standard with the molecular formula C11H10OS and a molecular weight of 190.26 g/mol.

Structurally, 1-(3-Methyl-1-benzothiophen-2-yl)ethanone (C11H10OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 190.26 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC11H10OS
Molecular Weight190.26 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1962
Sulfur Atoms1

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