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881993-27-7

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881993-27-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 881993-27-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,1,9,9 and 3 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 881993-27:
(8*8)+(7*8)+(6*1)+(5*9)+(4*9)+(3*3)+(2*2)+(1*7)=227
227 % 10 = 7
So 881993-27-7 is a valid CAS Registry Number.

881993-27-7Relevant articles and documents

Synthesis of pyrido[2,3-d]pyridazines and pyrazino[2,3-d]-pyridazines-novel classes of GABAA receptor benzodiazepine binding site ligands

Mitchinson, Andrew,Blackaby, Wesley P.,Bourrain, Sylvie,Carling, Robert W.,Lewis, Richard T.

, p. 2257 - 2260 (2007/10/03)

Novel syntheses of 2,3,8-trisubstituted pyrido[2,3-d]pyridazines and 2,3,5-trisubstituted pyrazino[2,3-d]pyridazines are described. Two complementary routes to pyrido[2,3-d]pyridazines were developed, the first of which began by constructing the pyridine

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