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1632138-08-9

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1632138-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1632138-08-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,2,1,3 and 8 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1632138-08:
(9*1)+(8*6)+(7*3)+(6*2)+(5*1)+(4*3)+(3*8)+(2*0)+(1*8)=139
139 % 10 = 9
So 1632138-08-9 is a valid CAS Registry Number.

1632138-08-9Relevant academic research and scientific papers

Scandium-catalyzed intramolecular friedel-crafts reactions of 2-[(2-Alkyl-1 H -indol-3-yl)methylene]malonates

Oh, Chang Ho,Park, Hyo Seung,Park, Nari,Kim, So Young,Piao, Lanhua

, p. 579 - 585 (2014/03/21)

We have synthesized a variety of 2-[(2-alkyl-1H-indol-3-yl)methylene] malonates and studied their scandium-catalyzed intramolecular Friedel-Crafts reactions leading to the corresponding polycyclic compounds such as indeno[1,2-b]indoles and benzo[1,2-b]carbazoles. Georg Thieme Verlag Stuttgart New York.

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