Description

3,5-Dibromoanisole (CAS NO 74137-36-3) is a versatile brominated aromatic ether that serves as a critical building block in advanced organic synthesis. Its value lies in its dual bromine substituents, which provide reactive sites for further functionalization via cross-coupling reactions. This intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science sectors, enabling the development of complex molecules and specialty chemicals.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a substituted anisole core.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where bromine atoms facilitate further derivatization.
• Liquid Crystal & OLED Materials: Serves as a building block for creating advanced organic electronic materials and liquid crystal displays (LCDs).
• Polymer Modification: Employed to introduce brominated aromatic units into polymer chains, altering thermal and flame-retardant properties.
• Organic Synthesis Reagent: A valuable reagent in Suzuki, Stille, and other palladium-catalyzed cross-coupling reactions to form biaryl structures.
• Dye & Pigment Manufacturing: Intermediate in the synthesis of complex dyes and organic pigments.

Basic Information

Item	Details
Product Name	3,5-Dibromoanisole
CAS No.	74137-36-3
Molecular Formula	C7H6Br2O
Molecular Weight	265.93 g/mol
Synonyms	1,3-Dibromo-5-methoxybenzene; 3,5-Dibromo-1-methoxybenzene; Anisole, 3,5-dibromo-; m-Dibromoanisole; 3,5-Dibromophenyl methyl ether; Benzene, 1,3-dibromo-5-methoxy-
EINECS	Contact for details

Quality Control

Our 3,5-Dibromoanisole is produced under strict quality management systems to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, GC, and NMR to verify identity and quantify impurities. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to support your quality assurance protocols.

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 organic solvents. Recommended storage temperature is between 15°C and 25°C. Keep container tightly sealed when not in use to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	64 - 68 °C
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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