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118353-34-7

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118353-34-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118353-34-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,3,5 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 118353-34:
(8*1)+(7*1)+(6*8)+(5*3)+(4*5)+(3*3)+(2*3)+(1*4)=117
117 % 10 = 7
So 118353-34-7 is a valid CAS Registry Number.

118353-34-7Downstream Products

118353-34-7Relevant articles and documents

Rapid and Efficient Synthesis of Nucleoside 5'-O-(1-Thiotriphosphates), 5'-Triphosphates and 2',3'-Cyclophosphorothioates Using 2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one

Ludwig, Janos,Eckstein, Fritz

, p. 631 - 635 (2007/10/02)

2-Chloro-4H-1,3,2-benzodioxaphosphorin-4-one phosphitylates the 5'-hydroxy group of a nucleoside to form an intermediate (2), which on subsequent reaction with pyrophosphate produces, in a double displacement process, a P2,P3-dioxo-P1-5'-nucleosidylcyclotriphophite (3).Oxidation with sulfur gives a nucleoside 5'-(1-thiocyclotriphosphate) (4), which is hydrolyzed to the diastereomeric mixture of a nucleoside 5'-O-(1-thiotriphosphate) (5).Alternatively, 3 can be oxidized with iodine/water to furnish nucleoside 5'-triphosphates 6.This reagent can also be applied to the synthesis of nucleoside 2',3'-cyclic phosphorothioates.Protection of nucleobase functional groups is not required.

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