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75933-85-6

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75933-85-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75933-85-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,9,3 and 3 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75933-85:
(7*7)+(6*5)+(5*9)+(4*3)+(3*3)+(2*8)+(1*5)=166
166 % 10 = 6
So 75933-85-6 is a valid CAS Registry Number.

75933-85-6Downstream Products

75933-85-6Relevant articles and documents

A Convenient Synthesis of the 3'-Terminal Nonaoligoribonucleotide of Rous Sarcoma Virus 35S RNA via the Modified Phosphotriester Approach

Takaku, Hiroshi,Yoshida, Masatoshi,Nomoto, Tadaaki

, p. 1399 - 1403 (2007/10/02)

The synthesis of oligoribonucleotide UpUpCpApCpCpApCpA via the phosphotriester approach, which is located at the 3'terminus of Rous sarcoma virus 35S RNA, is described. 5'-O-(Dimethoxytrityl)-2'-O-tetrahydropyranyl-N-acylnucleoside 3'-(4-chlorophenyl 5-chloro-8-quinolyl phosphates) were used as the starting materials .Treatment of the fully protected mononucleotides with 2percent p-toluenesulfonic acid afforded the 5'-hydroxyl nucleotides, whereas treatment with syn-pyridine-2-carboxaldoxime to remove the 4-chlorophenyl group gave the phosphodiesters.The fully protected nona mer was prepared by utilizing these deblocking products.The fully protected nonamer was completely deprotected by treatment with zinc chloride, followed by treatment with base and acid, to give the corresponding oligoribonucleotide.

(8-Quinolinesulfonyl)tetrazole: A New Type of Highly Efficient Coupling Agent for the Synthesis of Ribooligonucleotides by the Phosphortriester Approach

Takaku, Hiroshi,Yoshida, Masatoshi

, p. 589 - 593 (2007/10/02)

(8-Quinolinesulfonyl)Tetrazole (QS-tet) has been developed as a new type of highly efficient coupling agent in the synthesis of phosphotriester bonds.This reagent very rapidly completes the coupling reactions, and the yield is considerably higher than tha

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