3,4-Dimethylbromobenzen Cas:583-71-1

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Product Description:

Product Name: 3,4-Dimethylbromobenzen CAS NO: 583-71-1

 

Synonyms:

o-Xylene, 4-bromo-;

4-bromo-1,2-dimethyl-benzen;

4-Bromo-ortho-xylene;

 

Chemical & Physical Properties:

Appearance: Colorless clean liquid

Assay :≥98.0%

Density: 1.37

Boiling Point: 215℃

Melting Point: -12—10℃

Flash Point: 80℃

Refractive Index: 1.555-1.557

Stability: Stable under normal temperatures and pressures

 

Safety Information:

Hazard Codes: Xi

Hazard Class: 6.1

HS Code: 29036990

Safety Statements: S24/25-S60-S61

WGK Germany: 3

Packing Group: I; II; III

RTECS: CY9020400

RIDADR: UN 1701

Risk Statements: R22; R36/37/38; R50/53

 

4- bromo-1, 2-xylene, also known as 3, 4-dimethyl bromobenzene, 4- bromo-1, 2-xylene is mainly used as the raw material of organic synthesis, used for the synthesis of biphenyltetraformic dianhydride, the important Chemicalbook monomer of super – heat resistant polyimide, and is also the main raw material of 5-bromobenfurone. The 4-bromo-1, 2-xylene products currently on the market are manufactured using the following processes.

4- bromo-1, 2-xylene can be used as raw materials for organic synthesis, such as the synthesis of siliceous aromatic dianhydride. Silicylphthalimide resin has the excellent properties of both phthalimide and silicone resin, especially in the soluble, adhesive, moisture absorption, electrical insulation performance, etc., more and more advantages, so more and more people close Chemicalbook note. Bis -(3,4 benzodiformic acid) dimethyl silane was firstly prepared by reacting with dichlorodimethyl silane in n-butyl lithium diethyl ether solution, and then synthesized by oxidation and ester formation reaction.

 

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