Thermo Scientific Chemicals

Trimethyl borate, 99%, Thermo Scientific Chemicals

Catalog number: B20215.AU
1000 mL, Each
Thermo Scientific Chemicals

Trimethyl borate, 99%, Thermo Scientific Chemicals

Catalog number: B20215.AU
1000 mL, Each
Quantity
Catalog number: B20215.AU
also known as B20215-AU
Price (EUR)

Chemical Identifiers

CAS
121-43-7
IUPAC Name
trimethyl borate
Molecular Formula
C3H9BO3
InChI Key
WRECIMRULFAWHA-UHFFFAOYSA-N
SMILES
COB(OC)OC
Assay (GC)
≥98.5% (non-U.S. sourced material)
Comment
Material sourced in the U.S. and in other countries
Assay from Supplier's CofA
≥98.5% (U.S. sourced material)
Refractive Index
1.3560-1.3590 @ 20°C (non-U.S. sourced material)
Form
Liquid

Description

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 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.

Applications
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 Suzuki coupling reaction. It is an intermediate in the preparation of sodium borohydride.

Solubility
Miscible with tetrahydrofuran, ether, isoporpylamine, hexane and methanol.

Notes
Moisture sensitive. Keep container tightly closed in a dry and well-ventilated place. Incompatible with oxidizing agents. It decomposes slowly in the presence of moisture and rapidly in water.
RUO – Research Use Only

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    Safety and Handling


    Classification of the substance or mixture
    CLP classification - Regulation(EC) No 1272/2008
    Flammable liquids
    Category 2
    Acute dermal toxicity
    Category 4
    Label Elements
    Signal Word

    Danger

    Hazard Statements

    H312 - Harmful in contact with skin

    Physical Hazards

    H225 - Highly flammable liquid and vapor

    Precautionary Statements

    P210 - Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking

    P240 - Ground and bond container and receiving equipment

    P280 - Wear protective gloves/protective clothing/eye protection/face protection