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161664-19-3

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161664-19-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 161664-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,6,6 and 4 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 161664-19:
(8*1)+(7*6)+(6*1)+(5*6)+(4*6)+(3*4)+(2*1)+(1*9)=133
133 % 10 = 3
So 161664-19-3 is a valid CAS Registry Number.

161664-19-3Relevant articles and documents

REAGENTS FOR REVERSIBLY TERMINATING PRIMER EXTENSION

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Page/Page column 10-11, (2010/11/04)

This invention relates to the field of nucleic acid chemistry, more specifically to the field of compositions of matter that comprise triphosphates of modified 2'-deoxynucleosides and oligonucleotides that are formed when these are appended to the 3'-end of a primer, wherein said modifications comprise NH2 moiety attached to their 3'-hydroxyl group and a fluorescent species in a form of a tag affixed to the nucleobase via a linker that can be cleaved. Such compositions and their associated processes enable and improve the sequencing of oligonucleotides using a strategy of cyclic reversible termination, as outlined in US Patent 6,664,079. Most specifically, the invention concerns compositions of matter that are 5'-triphosphates of ribo- and 2'- deoxyribonucleosides carrying detectable tags and oligonucleotides that might be derived from them. The invention also concerns processes wherein a DNA polymerase, RNA polymerase, or reverse transcriptase synthesizes said oligonucleotides via addition of said triphosphates to a primer.

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