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172940-20-4

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172940-20-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172940-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,9,4 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 172940-20:
(8*1)+(7*7)+(6*2)+(5*9)+(4*4)+(3*0)+(2*2)+(1*0)=134
134 % 10 = 4
So 172940-20-4 is a valid CAS Registry Number.

172940-20-4Downstream Products

172940-20-4Relevant articles and documents

3-deazapurines

-

, (2008/06/13)

This invention relates to compounds based on the 3-deazapurines ring system and to methods for making such compounds. The invention also generally relates to the field of "antisense" agents, agents that are capable of specific hybridization with a nucleotide sequence of an RNA. The 3-deazapurine-containing compounds of this invention can be useful for modulating the activity of RNA when incorporated into oligonucleotides. Oligonucleotides and their analogs are used for a variety of therapeutic and diagnostic purposes, such as treating diseases, regulating gene expression in experimental systems, assaying for RNA and for RNA products through the employment of antisense interactions with such RNA, diagnosing diseases, modulating the production of proteins and cleaving RNA in site specific fashions.

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