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276680-11-6

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276680-11-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 276680-11-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,6,6,8 and 0 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 276680-11:
(8*2)+(7*7)+(6*6)+(5*6)+(4*8)+(3*0)+(2*1)+(1*1)=166
166 % 10 = 6
So 276680-11-6 is a valid CAS Registry Number.

276680-11-6Relevant articles and documents

Synthesis of nucleosides of pyrido-pyrimidines and their microbial activity

Singh, Gajendra,Swati,Mishra, A. K.,Prakash, L.

, p. 517 - 520 (2007/10/03)

The nucleosides, 4-amino-5, 7-disubstituted-1-pyrido-pyrimidin-2-ones/thiones 6 and 7 and 3,5,7-trisubstituted-1-(β-D-ribofuranosyl>-pyrido pyrimidine-2, 4(3H)-diones 8 have been synthesized from 5,7-disubstituted pyrido--pyrimidin-2(1H)-ones/thiones 3 and 4 and 3,5,7-trisubstituted-1H, 3H-pyridopyrimidine-2,4-diones 5 respectively.The structures of the synthesized nucleosides and their precursors have been established by IR, 1H NMR and elemental analysis.These compounds have been tested for their antibacterial and antifungal activity and are found to be better antibacterial and antifungal agents than their precursors pyridopyrimidines.

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