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220984-13-4

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220984-13-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220984-13-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,9,8 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 220984-13:
(8*2)+(7*2)+(6*0)+(5*9)+(4*8)+(3*4)+(2*1)+(1*3)=124
124 % 10 = 4
So 220984-13-4 is a valid CAS Registry Number.

220984-13-4Relevant articles and documents

Synthesis and Reactions of 3-Arylsulfonylamido-N-arylsulfonyl-1,4-benzoquinonimines

Avdeenko

, p. 515 - 524 (2007/10/03)

3-Arylsulfonylamido-N-arylsulfonyl-1,4-benzoquinonimines are produced by oxidation of 1,2-diarylsulfonylbenzenes with phenyliodosodiacetate in the presence of boron(III) fluoride etherate. Addition of hydrogen chloride and oxidation with lead tetraacetate

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