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4-benzenesulfonylazo-benzoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

28764-81-0

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28764-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28764-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,7,6 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 28764-81:
(7*2)+(6*8)+(5*7)+(4*6)+(3*4)+(2*8)+(1*1)=150
150 % 10 = 0
So 28764-81-0 is a valid CAS Registry Number.

28764-81-0Downstream Products

28764-81-0Relevant academic research and scientific papers

Fast, efficient, and convenient method for the preparation of arylazo aryl sulfones using stable aryldiazonium silica sulfates under mild conditions

Zarei, Amin,Hajipour, Abdol R.,Khazdooz, Leila,Aghaei, Hamidreza

experimental part, p. 1201 - 1204 (2010/07/06)

An efficient, fast, and straightforward procedure for the synthesis of arylazo aryl sulfones is described by using aryl diazonium silica sulfates and sodium arenesulfinates. The reaction was carried out at room temperature under mild conditions. The use o

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