Trimethyl borate CAS 121-43-7

Purity >95%In StockPharmaceutical Standards
CAS No.121-43-7
Molecular FormulaC3H9BO3
Molecular Weight103.91 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Trimethyl borate CAS 121-43-7 chemical structure

Description

Trimethyl borate (CAS 121-43-7), molecular formula C3H9BO3 and molecular weight 103.91 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C3H9BO3, Trimethyl borate contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 103.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.

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), Trimethyl borate 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 FormulaC3H9BO3
Molecular Weight103.91 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-0.5
CAS Registry Year (est.)1957

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Why CATO?