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73240-35-4

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73240-35-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73240-35-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,2,4 and 0 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 73240-35:
(7*7)+(6*3)+(5*2)+(4*4)+(3*0)+(2*3)+(1*5)=104
104 % 10 = 4
So 73240-35-4 is a valid CAS Registry Number.

73240-35-4Relevant articles and documents

Ribonucleoside Cyclic 3',5'-Phosphoramidates: Synthesis, Stereochemistry, and Conversion into Ribonucleoside Cyclic 3',5'-Phosphorothioates and -Phosphates

Baraniak, Janina,Stec, Wojcieh J.

, p. 1645 - 1656 (2007/10/02)

Base- and O2'-protected nucleoside cyclic 3',5'-phosphates (1) react with aniline in the presence of triphenylphosphine-carbon tetrachloride to give the nucleoside cyclic 3',5'-phosphoramidates (2), which after separation into individual diaste

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