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74476-81-6

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74476-81-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74476-81-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,4,7 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74476-81:
(7*7)+(6*4)+(5*4)+(4*7)+(3*6)+(2*8)+(1*1)=156
156 % 10 = 6
So 74476-81-6 is a valid CAS Registry Number.

74476-81-6Relevant articles and documents

Synthesis of 5-ethylpyrimidine nucleoside analogs

Takenaka, Keiko,Muraoka, Masako,Tsuji, Tadakazu

, p. 669 - 673 (2007/10/03)

This paper describes the synthesis of acyclic, cyclic, and deoxy sugar nucleosides of 5-ethylpyrimidine, i.e., i) 1-(2-hydroxyethoxymethyl), 1-(2-methoxyethoxymethyl), and 1-ethoxyethyl derivatives of 5-ethyluracil and 5-ethylcytosine, ii) 5-ethyl-1-(tetrahydro-2H-pyran-2-yl)- and -1-(tetrahydrofuran-2-yl)uracils, and iii) 5-ethyl-2'-deoxyuridine.

Syntheses and antiviral activities of 5'- and 3'-ester derivatives

Kiefer,Keppeler,De Clercq

, p. 154 - 160 (2007/10/02)

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