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91805-51-5

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91805-51-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91805-51-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,0 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91805-51:
(7*9)+(6*1)+(5*8)+(4*0)+(3*5)+(2*5)+(1*1)=135
135 % 10 = 5
So 91805-51-5 is a valid CAS Registry Number.

91805-51-5Downstream Products

91805-51-5Relevant articles and documents

Iron-catalyzed tandem reactions of ortho-aminobenzenethiols with isothiocyanates leading to 2-aminobenzoazoles under ligand-and solvent-free conditions

Ding, Qiuping,Cao, Banpeng,Yang, Qin,Liu, Xianjin,Peng, Yiyuan

experimental part, p. 1782 - 1789 (2011/10/02)

An efficient route to synthesize a variety of 2-aminobenzoazoles has been discovered. It involves the reaction of ortho-aminobenzenethiols with isothiocyanates via iron-catalyzed tandem addition-annulations process under ligand and solvent free conditions on silica gel surface. Copyright Taylor &Francis Group, LLC.

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