4,4,5,5-Tetramethyl-2-(thiophen-3-ylethynyl)-1,3,2-dioxaborolane CAS 1966941-46-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1966941-46-7
Molecular FormulaC12H15BO2S
Molecular Weight234.12 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4,5,5-Tetramethyl-2-(thiophen-3-ylethynyl)-1,3,2-dioxaborolane CAS 1966941-46-7 chemical structure

Description

CATO manufactures 4,4,5,5-Tetramethyl-2-(thiophen-3-ylethynyl)-1,3,2-dioxaborolane under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

4,4,5,5-Tetramethyl-2-(thiophen-3-ylethynyl)-1,3,2-dioxaborolane (CAS 1966941-46-7) is a high-purity analytical reference standard with the molecular formula C12H15BO2S and a molecular weight of 234.12 g/mol.

Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 4,4,5,5-Tetramethyl-2-(thiophen-3-ylethynyl)-1,3,2-dioxaborolane is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 234.12 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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.

Physical & Chemical Properties

Molecular FormulaC12H15BO2S
Molecular Weight234.12 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1996
Sulfur Atoms1

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