4,4,5,5-Tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)thien-2-yl]-1,3,2-dioxaborolane CAS 1492038-20-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1492038-20-6
Molecular FormulaC17H27BO4S
Molecular Weight338.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4,4,5,5-Tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)thien-2-yl]-1,3,2-dioxaborolane CAS 1492038-20-6 chemical structure

Description

4,4,5,5-Tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)thien-2-yl]-1,3,2-dioxaborolane (CAS 1492038-20-6), molecular formula C17H27BO4S and molecular weight 338.27 g/mol, is a CATO reference standard with documented purity and traceability.

4,4,5,5-Tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)thien-2-yl]-1,3,2-dioxaborolane (C17H27BO4S) contains a steroid core, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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.

As a certified reference material (CRM), 4,4,5,5-Tetramethyl-2-[5-(4,4,5,5-tetramethyl-1,3-dioxolan-2-yl)thien-2-yl]-1,3,2-dioxaborolane meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC17H27BO4S
Molecular Weight338.27 g/mol
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.5
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1992
Sulfur Atoms1

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