Description

4-Methylbenzyl Bromide is a versatile and reactive organic bromide derivative, serving as a critical alkylating agent and synthetic intermediate in advanced chemical synthesis. Its primary value lies in its ability to introduce the 4-methylbenzyl group into target molecules, enabling the construction of complex structures for pharmaceuticals and specialty chemicals. This compound is essential for R&D chemists and production units in the pharmaceutical, agrochemical, and material science industries seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring benzyl-protected or functionalized aromatic systems.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and pesticides where the 4-methylbenzyl moiety contributes to biological activity.
• Liquid Crystal & OLED Material Precursor: Serves as an intermediate in the manufacture of advanced electronic materials for displays and lighting.
• Organic Synthesis Reagent: Employed as a benzylating agent in nucleophilic substitution reactions and in the preparation of ligands for catalysis.
• Fine Chemical Production: Utilized in the synthesis of fragrances, dyes, and other specialty organic compounds.
• Polymer Modification: Acts as a functional monomer or cross-linking agent in the development of specialty polymers.

Basic Information

Product Name	4-Methylbenzyl Bromide
CAS No.	104-81-4
Molecular Formula	C8H9Br
Molecular Weight	185.06 g/mol
Synonyms	p-Methylbenzyl Bromide; α-Bromo-4-methyltoluene; 1-(Bromomethyl)-4-methylbenzene; (4-Methylphenyl)methyl Bromide; p-Xylyl Bromide; 4-Methylbenzylbromide; p-Tolylmethyl Bromide; Bromo(4-methylphenyl)methane
EINECS	203-239-9

Quality Control

Our 4-Methylbenzyl Bromide is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including assay by GC/HPLC, identity confirmation (IR, NMR), and impurity profiling, to ensure it meets the high-purity standards required for sensitive synthetic applications. Certificates of Analysis (COA) documenting all critical parameters are provided and can be tailored to meet specific customer or regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and bases. Recommended storage temperature is between 2°C and 25°C. The product is light-sensitive and should be stored away from light.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC/HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC/HPLC)	Individual impurity ≤ 1.0%

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