Description

3-Bromo-4-Methoxyphenyl Methanesulfonate is a high-purity, specialized organic intermediate of significant importance in advanced chemical synthesis. Its core value lies in its role as a versatile building block for constructing complex molecular architectures, particularly in the pharmaceutical and agrochemical sectors. This compound is essential for researchers and manufacturers in fine chemical, pharmaceutical R&D, and material science industries who require reliable, high-quality intermediates for developing active ingredients and novel compounds.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially those with complex aryl ether or sulfonate ester motifs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and plant growth regulators.
• Material Science Research: Serves as a monomer or precursor in the development of specialty polymers and advanced organic materials.
• Ligand and Catalyst Development: Employed in the creation of novel ligands for transition metal catalysis and organocatalysts.
• Chemical Biology Probes: Useful for synthesizing molecular probes and tags for studying biological systems and mechanisms.
• Custom Synthesis & Contract Manufacturing: A critical starting material for custom synthesis projects and scale-up processes in CDMO (Contract Development and Manufacturing Organization) facilities.

Basic Information

Product Name	3-Bromo-4-Methoxyphenyl Methanesulfonate
CAS No.	951885-46-4
Molecular Formula	C9H11BrO4S
Molecular Weight	295.15 g/mol
Synonyms	3-Bromo-4-methoxyphenyl methanesulfonate; Methanesulfonic acid 3-bromo-4-methoxyphenyl ester; 4-Methoxy-3-bromophenyl methanesulfonate; (3-Bromo-4-methoxyphenyl) methylsulfonate; 951885-46-4; 3-Bromo-4-methoxy phenyl mesylate
EINECS	Contact for details

Quality Control

Our 3-Bromo-4-Methoxyphenyl Methanesulfonate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specification results. Our quality commitment aligns with cGMP principles where applicable, ensuring reliability for your most critical synthesis steps.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep the container tightly sealed to minimize exposure to moisture. Store away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Purity (HPLC Area %)	≥ 99.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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