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139887-94-8

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139887-94-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139887-94-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,8,8 and 7 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 139887-94:
(8*1)+(7*3)+(6*9)+(5*8)+(4*8)+(3*7)+(2*9)+(1*4)=198
198 % 10 = 8
So 139887-94-8 is a valid CAS Registry Number.

139887-94-8Downstream Products

139887-94-8Relevant articles and documents

Synthesis of Deoxydinucleoside Phosphates containing 6-Thio-substituted Purine Nucleobases

Clivio, Pascale,Fourrey, Jean-Louis,Favre, Alain

, p. 2585 - 2590 (2007/10/02)

An efficient preparative method to obtain, by the hydrogen phosphonate approach in solution, dinucleoside phosphates containing either 2'-deoxy-6-thioinosine or 2'-deoxy-6-thioguanosine at their 3' end, as in compounds 6 and 7, is described.For this purpose appropriate 5'-OH-free sulfur -modified deoxynucleoside intermediates required for this synthesis have been defined, as exemplified with the case of 2'-deoxy-6-thioguanosine.

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