Description

Trimethyl Borate is a highly versatile and reactive organoboron compound, serving as a fundamental building block in advanced chemical synthesis. Its primary value lies in its role as a methylating agent and a crucial precursor for generating other boron-containing reagents and materials. This chemical is essential for industries focused on pharmaceuticals, agrochemicals, and specialty polymers, where precise chemical transformations are required. Global procurement teams rely on it for its consistent reactivity and purity in demanding manufacturing processes.

Application

• Chemical Synthesis: Acts as a key methylating agent and a versatile precursor for synthesizing other borate esters and boron-based compounds.
• Pharmaceutical Intermediates: Used in the production of active pharmaceutical ingredients (APIs) and complex organic molecules requiring boron incorporation.
• Polymer & Material Science: Serves as a cross-linking agent or catalyst in the production of specialty resins, polymers, and flame retardants.
• Agrochemical Manufacturing: Employed in the synthesis of certain herbicides, fungicides, and other crop protection agents.
• Electrolyte Additive: Used in the formulation of electrolytes for lithium-ion and other advanced battery systems.
• Laboratory Reagent: A valuable reagent in research and development for organic synthesis and material studies.

Basic Information

Product Name	Trimethyl Borate
CAS No.	121-43-7
Molecular Formula	C3H9BO3
Molecular Weight	103.91 g/mol
Synonyms	Methyl Borate; Trimethoxyborane; Boric Acid Trimethyl Ester; Trimethyl Boron Trioxide; Trimethoxyboron; TMB; B(OMe)3
EINECS	204-468-9

Quality Control

Our Trimethyl Borate is manufactured under stringent quality management systems to ensure batch-to-batch consistency and high purity. All products undergo rigorous analytical testing, including gas chromatography (GC) and Karl Fischer titration, to meet precise customer specifications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flame. Due to its highly volatile and easily oxidized nature, it is recommended to store under an inert atmosphere (e.g., nitrogen or argon) to maintain product integrity. Keep away from incompatible materials such as strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0%
Water Content (KF)	≤ 0.1%
Density (20°C)	0.915 - 0.935 g/mL
Refractive Index (n20D)	1.354 - 1.358

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.