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222853-25-0

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222853-25-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222853-25-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,8,5 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 222853-25:
(8*2)+(7*2)+(6*2)+(5*8)+(4*5)+(3*3)+(2*2)+(1*5)=120
120 % 10 = 0
So 222853-25-0 is a valid CAS Registry Number.

222853-25-0Relevant articles and documents

Reaction of N-arylsulfonyl-l,4-benzoquinone monoimines with p-toluidine

Burmistrov,Burmistrova

, p. 856 - 860 (2007/10/03)

In the uncatalysed reaction of N-arylsulfonyl-l,4-benzoquinonemonoimines and p-toluidine occurs predominantly 1,2-addition - elimination. If there is no substituent ortho to oxygen 1,4-addition takes place; with halogen as substituent occurs nucleophilic substitution. The reaction rate grows with increasing redox potential of the quinone imine.

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