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89128-97-2

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89128-97-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89128-97-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,2 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89128-97:
(7*8)+(6*9)+(5*1)+(4*2)+(3*8)+(2*9)+(1*7)=172
172 % 10 = 2
So 89128-97-2 is a valid CAS Registry Number.

89128-97-2Relevant articles and documents

THE PROTECTED DERIVATES OF 5-METHYLAMINOMETHYL-2-THIOURIDINE AND 5-CARBOMETHOXYMETHYL-2-THIOURIDINE AS COMPONENTS FOR THE OLIGONUCLEOTIDE SYNTHESIS

Malkiewicz, A.,Sochacka, E.

, p. 5387 - 5390 (1983)

The syntheses of protected derivates of 5-methylaminomethyl-2-thiouridine(mnm5s2U) 11, 12 and 5-carbomethoxymethyl-2-thiouridine(mcm5s2U) 13 as well as their unprotected 3'-phosphates 14, 15 have been described.

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