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196712-97-7

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196712-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 196712-97-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,7,1 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 196712-97:
(8*1)+(7*9)+(6*6)+(5*7)+(4*1)+(3*2)+(2*9)+(1*7)=177
177 % 10 = 7
So 196712-97-7 is a valid CAS Registry Number.

196712-97-7Relevant articles and documents

Synthetic entry to tricyclic and tetracyclic quinuclidine derivatives by cycloaddition and ring transformation

Hamama, Wafaa S.,Abd El-Magid, Osama M.,Zoorob, Hanafi H.

, p. 93 - 100 (2006)

The (Z)-2-arylidene-quinuclidines 5-8 were synthesized. Their reaction with aliphatic dibasic functional reagents in both basic and acidic conditions afforded the fused heterocycles 9, 10 and 11. However, the reaction of arylidene derivative 5 with an aromatic dibasic functional reagent gave benzimidazole 13 in lieu of the anticipated tetracyclic system, quinuclidino[3,2-e]benzo[b]-1,4- diazepine 12. Cycloadditions of 5 with different reagents gave the heterocyclic derivatives 17, 19, 22 and 23. Acid-catalyzed cyclization of 5 with excess resorcinol gave 24. Compounds 9a, 19 and 24 showed antibacterial activities.

Search for NO donors. Part I. 3-quinuclidone oximes

Koikov,Alekseeva,Grigor'ev,Levina,Turchin,Filipenko,Mashkovskii,Kaminka,Nikitin,Engalycheva,Kalinkina,Granik,Severina,Ryaposova

, p. 243 - 250 (2007/10/03)

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