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81705-89-7

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81705-89-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81705-89-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,0 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81705-89:
(7*8)+(6*1)+(5*7)+(4*0)+(3*5)+(2*8)+(1*9)=137
137 % 10 = 7
So 81705-89-7 is a valid CAS Registry Number.

81705-89-7Relevant articles and documents

SYNTHESIS OF ADENYLYL-(2'->5')ADENYLYL-(2'->5')ADENOSINE

Karpeisky, Marat Yu.,Beigelman, Leon N.,Mikhailov, Sergey N.,Padyukova, Nelly Sh.,Smrt, Jiri

, p. 156 - 166 (2007/10/02)

Three syntheses of adenylyl-(2'->5')-adenylyl-(2'->5')-adenosine (1b) are described.In the first, adenosine 2'(3') phosphate is polymerized by the action of diphenylphosphorochloridate, and the 3'->5' internucleotidic linkages and the terminal phosphoryl

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