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22902-44-9

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22902-44-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 22902-44-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,9,0 and 2 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 22902-44:
(7*2)+(6*2)+(5*9)+(4*0)+(3*2)+(2*4)+(1*4)=89
89 % 10 = 9
So 22902-44-9 is a valid CAS Registry Number.

22902-44-9Relevant articles and documents

Salicylic Acid-Promoted Three-Component Annulation of Benzimidazoles, Aryl Nitroalkenes and Elemental Sulfur

Mei, Ruhuai,Xiong, Feng,Yang, Chenrui,Zhao, Jinwu

supporting information, p. 1861 - 1866 (2021/02/12)

Herein, a three-component cyclization reaction of benzimidazoles, aryl nitroalkenes and elemental sulfur has been developed. Cheap and easily available salicylic acid found to be an efficient mediator for the present transformation. This protocol provides

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