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109205-75-6

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109205-75-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109205-75-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,2,0 and 5 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109205-75:
(8*1)+(7*0)+(6*9)+(5*2)+(4*0)+(3*5)+(2*7)+(1*5)=106
106 % 10 = 6
So 109205-75-6 is a valid CAS Registry Number.

109205-75-6Relevant articles and documents

Nucleotides: Part LV - Synthesis and Application of a Novel Linker for Solid-Phase Synthesis of Modified Oligonucleotides

Waldvogel, Siegfried R.,Pfleiderer, Wolfgang

, p. 46 - 58 (2007/10/03)

Various bifunctional amino-protecting groups such as the phthaloyl, succinyl, and glutaryl group were investigated as potential linker molecules for attachment to solid-support materials. Pentane-1,3,5-tricarboxylic acid 1,3-anhydride (16) offered the best properties and reacted with the amino groups of differently sugar-protected adenosine (see 20 and 22), cytidine (see 29), and guanosine derivatives (see 32) to the corresponding 2-(2-carhoxyethyl)glutaryl derivatives 23, 24, 30, and 33. The usefulness of the new linker-type molecules was demonstrated by the solid-support synthesis of the potentially antivirally active 3′-deoxyadenylyl-(2′-5′)-2′-adenylic acid 2′-{2-[(adenin-9-yl)methoxy]ethyl} ester (38) starting from the 2′-end with N6,N 6-[2-(2-carboxyethyl)glutaryl]-9-{{2-[(4,4′-dimethoxytrityl) oxy]ethoxy} methyl}adenine (12).

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