Trimethyl borate, 99.99% (metals basis)

Product Code.	Quantity	unitSize
11310398	25 g	25g
11320398	100 g	100g
11330398	500 g	500g

Product Code. 11310398

Brand: Thermo Scientific Alfa Aesar 043765.14

Description

CAS: 121-43-7 | C3H9BO3 | 103.912 g/mol

Trimethyl borate is a useful reagent in organic synthesis. It is involved in the production of resins, waxes and paints and acts as a methylation agent. As a boron source, it is used to prepare flame retardants, anti-oxidants and corrosion inhibitors. It reacts with Grignard reagents followed by hydrolysis to prepare boronic acid. It is also used as a precursor of borate esters, which finds application in the Suzuki coupling reaction. It is an intermediate in the preparation of sodium borohydride.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 121-43-7
• Molecular Formula: C3H9BO3
• Molecular Weight (g/mol): 103.912
• MDL Number: MFCD00008346
• InChI Key: WRECIMRULFAWHA-UHFFFAOYSA-N
• Synonym: trimethoxyborane, methyl borate, trimethoxyboron, boric acid, trimethyl ester, trimethylborate, boric acid trimethyl ester, trimethoxyborine, borester o, boric acid h3bo3 , trimethyl ester, b och3 3
• PubChem CID: 8470
• ChEBI: CHEBI:38913
• IUPAC Name: trimethyl borate
• SMILES: B(OC)(OC)OC

• Melting Point: -34°C
• Color: Colorless
• Density: 0.915 g/mL
• Boiling Point: 67°C to 69°C
• Flash Point: −8°C (17°F)
• Odor: Odorless
• Refractive Index: 1.361
• Quantity: 25 g
• UN Number: UN2416
• Beilstein: 1697939
• Sensitivity: Moisture sensitive
• Merck Index: 14,9712
• Solubility Information: Miscible with tetrahydrofuran,ether,isoporpylamine,hexane and methanol.
• Formula Weight: 103.92
• Percent Purity: 99.99%
• Physical Form: Liquid
• Assay: (metals basis)
• Chemical Name or Material: Trimethyl borate

Safety and Handling

SDS

RUO – Research Use Only