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250649-66-2

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250649-66-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 250649-66-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,0,6,4 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 250649-66:
(8*2)+(7*5)+(6*0)+(5*6)+(4*4)+(3*9)+(2*6)+(1*6)=142
142 % 10 = 2
So 250649-66-2 is a valid CAS Registry Number.

250649-66-2Relevant articles and documents

Preparation of nucleoside 5′-deoxy-5′-methylenephosphonates as building blocks for the synthesis of methylenephosphonate analogues

Kers, Annika,Szaboe, Tomas,Stawinski, Jacck

, p. 2585 - 2590 (2007/10/03)

Efficient synthesis of suitably protected 2′-deoxycytidine, 2′-deoxyadenosine, and 2′-deoxyguanosine derivatives bearing the 5′-methylenephosphonate moiety with the 4-methoxy-1-oxido-2-picoIyl function as an intramolecular nucleophile catalytic group is d

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