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56409-81-5

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56409-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56409-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,4,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 56409-81:
(7*5)+(6*6)+(5*4)+(4*0)+(3*9)+(2*8)+(1*1)=135
135 % 10 = 5
So 56409-81-5 is a valid CAS Registry Number.

56409-81-5Downstream Products

56409-81-5Relevant articles and documents

Ketene Dithioacetals in the Aza-Diels-Alder Reaction with N-Arylimines: A Versatile Approach to Tetrahydroquinolines, 2,3-Dihydro-4-quinolones, and 4-Quinolones

Cheng, Dai,Zhou, Jinglan,Saiah, Eddine,Beaton, Graham

, p. 4411 - 4414 (2002)

(Matrix Presented) The first successful use of ketene dithioacetals as dienophiles in the aza-Diels-Alder reaction with N-arylimines is described. Among the ketene dithioacetals tested, 1,4-benzodithiafulveness are most effective in assembling the tetrahy

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