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421571-76-8

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421571-76-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 421571-76-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,1,5,7 and 1 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 421571-76:
(8*4)+(7*2)+(6*1)+(5*5)+(4*7)+(3*1)+(2*7)+(1*6)=128
128 % 10 = 8
So 421571-76-8 is a valid CAS Registry Number.

421571-76-8Relevant articles and documents

Methyl scanning: Total synthesis of demethylasterriquinone B1 and derivatives for identification of sites of interaction with and isolation of its receptor(s)

Pirrung, Michael C.,Liu, Yufa,Deng, Liu,Halstead, Diana K.,Li, Zhitao,May, John F.,Wedel, Michael,Austin, Darrell A.,Webster, Nicholas J. G.

, p. 4609 - 4624 (2007/10/03)

The principle of methyl scanning is proposed for determination of the sites of interaction between biologically active small molecules and their macromolecular target(s). It involves the systematic preparation of a family of methylated derivatives of a co

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