3711-04-4 Usage
General Description
[4,4'-Biisobenzofuran]-1,1',3,3'-tetrone is a chemical compound with the molecular formula C20H10O6. It is a tetrone derivative, which means it contains four carbonyl groups. The compound is also known as bibenzofuran tetrone and has been the subject of research due to its potential applications in the field of organic electronics and materials science. It has been studied for its ability to form organized molecular assemblies and its potential use as a building block for functional organic materials. Additionally, [4,4'-Biisobenzofuran]-1,1',3,3'-tetrone has shown promising properties as a potential electron acceptor in organic photovoltaic devices, making it a subject of interest in the development of new materials for renewable energy technologies.
Check Digit Verification of cas no
The CAS Registry Mumber 3711-04-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,1 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 3711-04:
(6*3)+(5*7)+(4*1)+(3*1)+(2*0)+(1*4)=64
64 % 10 = 4
So 3711-04-4 is a valid CAS Registry Number.
3711-04-4Relevant articles and documents
Preparation method for biphenyltetracarboxylic dianhydride mixture
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Paragraph 0030; 0031, (2016/10/09)
The invention relates to a preparation method for a biphenyltetracarboxylic dianhydride mixture. The preparation method comprises the following steps: with phthalic acid as a starting raw material, carrying out an electrophilic substitution reaction so as to produce a phthalic acid derivative; then subjecting the derivative to esterification so as to produce phthalate; further catalyzing phthalate and carrying out a coupling reaction so as to produce a biphenyl tetraformate mixture; and finally, successively carrying out saponification and acidification so as to produce the product biphenyltetracarboxylic dianhydride mixture. The method provided by the invention uses cheap and easily phthalic acid as the starting raw material and is a novel low-cost easily-operatable environment-friendly production method for biphenyltetracarboxylic dianhydride; moreover, isomeric compounds of all the biphenyltetracarboxylic dianhydride are synthesized at one time in the invention, so efficiency is improved and the cost is reduced.
