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174221-87-5

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174221-87-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174221-87-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,2,2 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 174221-87:
(8*1)+(7*7)+(6*4)+(5*2)+(4*2)+(3*1)+(2*8)+(1*7)=125
125 % 10 = 5
So 174221-87-5 is a valid CAS Registry Number.

174221-87-5Relevant articles and documents

Monomers for oligonucleotide synthesis with linkers carrying reactive residues: II. The synthesis of phosphoamidites on the basis of uridine and cytosine and containing a linker with methoxyoxalamide groups in position 2′

Vasil'eva,Abramova,Ivanova,Shishkin,Sil'nikov

, p. 234 - 242 (2007/10/03)

A convenient preparative synthesis of 2′-amino-2′-deoxyuridine was developed. Starting from 2′-amino-2′-deoxyuridine and 2′-amino-2′-deoxycytidine, monomers for the phosphoamidite oligonucleotide synthesis were obtained that carry a linker with methoxyoxalamide groups in position 2′.

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