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402734-81-0

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402734-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402734-81-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,7,3 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 402734-81:
(8*4)+(7*0)+(6*2)+(5*7)+(4*3)+(3*4)+(2*8)+(1*1)=120
120 % 10 = 0
So 402734-81-0 is a valid CAS Registry Number.

402734-81-0Relevant articles and documents

Synthesis of pentathymidylate using a 4-monomethoxytritylthio (MMTrS) group as a 5′-hydroxyl protecting group: Toward oligonucleotide synthesis without acid treatment

Seio, Kohji,Sekine, Mitsuo

, p. 8657 - 8660 (2007/10/03)

A phosphoramidite unit having 4-monomethoxytritylthio as a new 5′-hydroxyl protecting group was prepared and employed in oligonucleotide synthesis. The new phosphoramidite enabled the synthesis of oligonucleotides without the use of acids such as TFA or DCA.

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