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204513-96-2

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204513-96-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204513-96-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,1 and 3 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 204513-96:
(8*2)+(7*0)+(6*4)+(5*5)+(4*1)+(3*3)+(2*9)+(1*6)=102
102 % 10 = 2
So 204513-96-2 is a valid CAS Registry Number.

204513-96-2Relevant articles and documents

Nucleophilic substitution in the l-nitro-4-chloroanthraquinone by phenolates and thiophenolates

Tabatskaya,Beregovaya,Vlasov

, p. 861 - 866 (2007/10/03)

In reactions of l-nitro-4-chloroanthraquinone with phenolate anions first is chiefly substituted the chlorine atom, whereas by the thiophenolate anion predominantly is replaced the nitro group. The difference in behavior with this substrate of the O- and S-nucleophiles is attributed to the change in the proportion of electrostatic and orbital interaction.

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