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745822-40-6

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745822-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 745822-40-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,5,8,2 and 2 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 745822-40:
(8*7)+(7*4)+(6*5)+(5*8)+(4*2)+(3*2)+(2*4)+(1*0)=176
176 % 10 = 6
So 745822-40-6 is a valid CAS Registry Number.

745822-40-6Relevant articles and documents

Preparation of an advanced intermediate for the synthesis of stable analogues of guanofosfocin

George, Tesmol G.,Szolcsanyi, Peter,Koenig, Stefan G.,Paterson, Duncan E.,Isshiki, Yoshiaki,Vasella, Andrea

, p. 1287 - 1298 (2007/10/03)

The synthesis of C-mannosyl-guanosine 23, an advanced intermediate for the preparation of stable analogues of guanofosfocin, is described. This convergent approach features an improved Traube-type synthesis of a 8-substituted guanine, followed by ribosylation. NMR Studies show that the C-mannopyranosyl moiety of 23 adopts a distorted 1C4 conformation while the nucleoside is predominantly syn-oriented.

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