3,4-dihydro-1H-2-benzothiopyran-4-ol CAS 109819-33-2

Purity 97%+In StockPharmaceutical Standards
CAS No.109819-33-2
Molecular FormulaC9H10OS
Molecular Weight166.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-dihydro-1H-2-benzothiopyran-4-ol CAS 109819-33-2 chemical structure

Description

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.

3,4-dihydro-1H-2-benzothiopyran-4-ol (CAS 109819-33-2) is a high-purity analytical reference standard with the molecular formula C9H10OS and a molecular weight of 166.24 g/mol.

Structurally, 3,4-dihydro-1H-2-benzothiopyran-4-ol (C9H10OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 166.24 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).

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 FormulaC9H10OS
Molecular Weight166.24 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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Sulfur Atoms1

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