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135704-44-8

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135704-44-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135704-44-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,7,0 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 135704-44:
(8*1)+(7*3)+(6*5)+(5*7)+(4*0)+(3*4)+(2*4)+(1*4)=118
118 % 10 = 8
So 135704-44-8 is a valid CAS Registry Number.

135704-44-8Relevant articles and documents

Conversion of nucleoside H-phosphonate monoesters to the corresponding H- phosphonothioates. 31P NMR studies

Stawinski,Zain

, p. 711 - 714 (1995)

31P NMR Studies on the conversion of nucleoside H-phosphonate monoesters into the corresponding H-phosphonothioates revealed that the key intermediate, the nucleoside trimethylsilyl pivaloyl phosphite 3, may undergo under the reaction condition

Aryl H-phosphonates. 6. Synthetic studies on the preparation of nucleoside N-alkyl-H-phosphonamidates

Sobkowska, Anna,Sobkowski, Michall,Cieslak, Jacek,Kraszewski, Adam,Kers, Inger,Stawinski, Jacek

, p. 4791 - 4794 (2007/10/03)

Various approaches to the synthesis of nucleoside H-phosphonamidates have been investigated. Direct couplings of nucleoside H-phosphonates with amines have been hampered by extensive reactions of the condensing agents with amines. Preactivation of nucleos

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