Description

Em 139 is a specialized chemical compound identified by CAS No. 131811-54-6, valued for its specific functional properties in advanced material synthesis and research. This compound is essential for applications requiring precise molecular interactions and controlled reactivity. It is primarily utilized by R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors.

Application

• Pharmaceutical Intermediates: Serves as a key building block in the synthesis of active pharmaceutical ingredients (APIs).
• Agrochemical Research: Used in the development and formulation of novel crop protection agents and plant growth regulators.
• Material Science: Acts as a precursor or additive in the creation of advanced polymers and functional materials.
• Chemical Synthesis: Employed as a reagent in organic synthesis for introducing specific molecular frameworks.
• Laboratory Research: A valuable reference standard and research chemical in academic and industrial R&D settings.
• Electronics Industry: Potential applications in the formulation of specialty chemicals for electronic materials.

Basic Information

Product Name	Em 139
CAS No.	131811-54-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	EM-139; 131811-54-6; Em139; EM 139; Compound Em 139; 1,3-Benzodioxole, 5-(2-bromo-4,5-dimethoxyphenyl)-; 5-(2-Bromo-4,5-dimethoxyphenyl)-1,3-benzodioxole
EINECS	Contact for details

Quality Control

Our Em 139 is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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