Trimethylboroxine

ALDRICH/323136 - 99%

Synonym: 2,4,6-Trimethyl-1,3,5,2,4,6-trioxatriborinane; 2,4,6-Trimethylboroxine; Methaneboronic anhydride; Trimethyl-1,3,5,2,4,6-trioxatriborinane

CAS Number: 823-96-1
Empirical Formula (Hill Notation): C₃H₉B₃O₃
Molecular Weight: 125.53
MDL Number: MFCD00013354
Linear Formula: C₃H₉B₃O₃
Product Type: Chemical

Catalog Number	PKG Qty.	Price


45-323136-1G	1 g	$53.60 1/EA	Add To Favorites
45-323136-5G	5 g	$135.00 1/EA	Add To Favorites
45-323136-25G	25 g	$353.00 1/EA	Add To Favorites
45-323136-250G	250 g	$2690.00 1/EA	Add To Favorites

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material. This image depicts SKU: 323136-1G.

Properties
Descriptions
Safety Info.
Basic Data

assay	99%
bp	78-80 °C (lit.)
density	0.898 g/mL at 25 °C (lit.)
form	liquid
InChI	1S/C3H9B3O3/c1-4-7-5(2)9-6(3)8-4/h1-3H3
InChI key	GBBSAMQTQCPOBF-UHFFFAOYSA-N
mp	−38 °C (lit.)
Quality Level	100
refractive index	n20/D 1.362 (lit.)
SMILES string	Cb1ob(C)ob(C)o1

Application:

Trimethylboroxine (TMB) is a cyclic anhydride of methyl-boronic acid. It can be been used:
• As a derivatizing agent for gas chromatographic/mass spectrometric analysis.
• In the preparation of methylaluminoxane (MAO) which is used in the polymerization of olefins.
• As an electrolyte additive to enhance the interface stability of electrode/electrolyte.
• In methylation of aryl halides by palladium-catalyzed Suzuki-Miyaura coupling reaction.
• In the preparation of CBS (Corey, Bakshi and Shibata) catalysts for asymmetric reductions of ketones to alcohols.

Packaging:

1, 5, 25, 250 g in glass bottle

Symbol	GHS02,GHS05
Signal word	Danger
Hazard statements	H225 - H314
Precautionary statements	P210 - P233 - P240 - P280 - P303 + P361 + P353 - P305 + P351 + P338
Hazard Codes	F,C
Risk Statements	11-34
Safety Statements	9-16-26-33-36/37/39-45
RIDADR	UN 2924 8(3) / PGII
WGK Germany	WGK 3

Purity	99%
bp	78-80 °C (lit.)
mp	−38 °C (lit.)
Density	0.898 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.362 (lit.)
UNSPSC	12352103

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