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440099-55-8

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440099-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 440099-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,0,0,9 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 440099-55:
(8*4)+(7*4)+(6*0)+(5*0)+(4*9)+(3*9)+(2*5)+(1*5)=138
138 % 10 = 8
So 440099-55-8 is a valid CAS Registry Number.

440099-55-8Relevant articles and documents

A versatile intermediate for the synthesis of 3′-substituted 2′,3′-didehydro-2′,3′-dideoxyadenosine (d4A): Preparation of 3′-C-stannyl-d4A via radical-mediated desulfonylative stannylation

Onuma, Sayoko,Kumamoto, Hiroki,Kawato, Misono,Tanaka, Hiromichi

, p. 2497 - 2503 (2002)

A method is described for the introduction of a tributylstannyl group to the 3′-position of 2′,3′-didehydro-2′,3′-dideoxyadenosine (2: d4A). Transalkoxylation of Bu3SnOMe with d4A and subsequent anionic O→C stannyl migration gave 3′-C-tributyls

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