Description

4-Bromo-o-Xylene is a versatile halogenated aromatic compound, serving as a critical building block in advanced organic synthesis. Its value lies in the reactivity of the bromine substituent, which enables efficient cross-coupling reactions and functional group transformations. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing active ingredients and complex molecules.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Building block for creating herbicides, fungicides, and other crop protection agents.
• Ligand and Catalyst Preparation: Used to synthesize specialized ligands for metal-catalyzed reactions.
• Material Science Research: Intermediate in the development of organic electronic materials and liquid crystals.
• Dye and Pigment Manufacturing: Serves as a starting material for certain complex organic dyes.
• Cross-Coupling Reactions: Essential substrate for Suzuki, Stille, and other palladium-catalyzed coupling reactions to form biaryl structures.

Basic Information

Product Name	4-Bromo-o-Xylene
CAS No.	2095-18-3
Molecular Formula	C8H9Br
Molecular Weight	185.06 g/mol
Synonyms	1-Bromo-3,4-dimethylbenzene; 3,4-Dimethylbromobenzene; 3,4-Dimethylphenyl bromide; o-Xylene, 4-bromo-; 4-Bromo-1,2-dimethylbenzene; 4-Bromo-o-xylol; Bromoxylene
EINECS	218-250-5

Quality Control

Our 4-Bromo-o-Xylene is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong acids and oxidizing agents. Recommended storage temperature is 2-25°C. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (GC)	Total impurities ≤ 2.0%
Density (at 20°C)	1.35 - 1.45 g/mL

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