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640268-97-9

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640268-97-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 640268-97-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,0,2,6 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 640268-97:
(8*6)+(7*4)+(6*0)+(5*2)+(4*6)+(3*8)+(2*9)+(1*7)=159
159 % 10 = 9
So 640268-97-9 is a valid CAS Registry Number.

640268-97-9Downstream Products

640268-97-9Relevant academic research and scientific papers

Evaluating the effect of termination by chain-chain coupling in living free-radical polymerizations

Pyun, Jeffrey,Rees, Ian,Frechet, Jean M.J.,Hawker, Craig J.

, p. 775 - 782 (2007/10/03)

A novel approach based on the reaction of multifunctional star polymers with chromophore-labelled linear polymers is presented for evaluating the extent of termination by chain-chain coupling during living free-radical polymerizations. A mixed initiating

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