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1307915-89-4

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1307915-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1307915-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,7,9,1 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1307915-89:
(9*1)+(8*3)+(7*0)+(6*7)+(5*9)+(4*1)+(3*5)+(2*8)+(1*9)=164
164 % 10 = 4
So 1307915-89-4 is a valid CAS Registry Number.

1307915-89-4Downstream Products

1307915-89-4Relevant academic research and scientific papers

Lewis base catalyzed [4+2] annulation of electron-deficient chromone-derived heterodienes and acetylenes

Dueckert, Heiko,Khedkar, Vivek,Waldmann, Herbert,Kumar, Kamal

, p. 5130 - 5137 (2011/06/20)

Lewis base catalyzed [4+2] annulation reactions between electron-deficient chromone oxa- and azadienes and acetylene carboxylates provide tricyclic benzopyrones inspired by natural products. An asymmetric synthesis of the tricyclic benzopyrones was developed by using modified cinchona alkaloids as enantiodifferentiating Lewis base catalysts.

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