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208759-22-2

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208759-22-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 208759-22-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,8,7,5 and 9 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 208759-22:
(8*2)+(7*0)+(6*8)+(5*7)+(4*5)+(3*9)+(2*2)+(1*2)=152
152 % 10 = 2
So 208759-22-2 is a valid CAS Registry Number.

208759-22-2Downstream Products

208759-22-2Relevant articles and documents

Reactions of chloromethyl aryl sulfones carbanions with anthraquinone derivatives

Makosza, Mieczyslaw,Nizamov, Shamil,Urbanczyk-Lipkowska, Zofia

, p. 6147 - 6158 (2007/10/03)

Carbanions of chloromethyl phenyl sulfone and chloromethyl p-tolyl sulfone react with anthraquinone containing electrondonating substituents in two major ways: vicarious nucleophilic substitution (VNS) of hydrogen and addition to the carbonyl group. The reaction course depends on electrondonating effects of these substituents - strong electron donors promote the VNS reaction.

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