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83831-43-0

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83831-43-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83831-43-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,8,3 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 83831-43:
(7*8)+(6*3)+(5*8)+(4*3)+(3*1)+(2*4)+(1*3)=140
140 % 10 = 0
So 83831-43-0 is a valid CAS Registry Number.

83831-43-0Relevant articles and documents

SOME DEVELOPMENTS IN THE PHOSPHITE-TRIESTER METHOD FOR SYNTHESIS OF OLIGONUCLEOTIDES

Letsinger, R. L.,Groody, E. P.,Lander, N.,Tanaka, T.

, p. 137 - 144 (2007/10/02)

1,1-Dimethyl-2,2,2-trichloroethyl has merit as a protecting group for P-O in the phosphite-triester synthesis of oligonucleotides.Use of this group enables one to simplify procedures for preparing active nucleoside phosphorochloridite reagents, to remove

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