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1225183-21-0

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1225183-21-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1225183-21-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,5,1,8 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1225183-21:
(9*1)+(8*2)+(7*2)+(6*5)+(5*1)+(4*8)+(3*3)+(2*2)+(1*1)=120
120 % 10 = 0
So 1225183-21-0 is a valid CAS Registry Number.

1225183-21-0Relevant articles and documents

Synthesis of 2-Aza[6]helicene and attempts to synthesize 2,14-diaza[6]helicene utilizing metal-catalyzed cycloisomerization

Storch, Jan,Cermak, Jan,Karban, Jindrich,Cisarova, Ivana,Sykora, Jan

supporting information; experimental part, p. 3137 - 3140 (2010/07/17)

A modular synthetic approach leading to 2-aza[6]helicene is reported. It involves assembly of key hetero biphenylylnaphthalenes from functionalized building blocks and study of their metal catalyzed cycloisomerization.

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