Cas 1246170-07-9,C22H16O5

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Check Digit Verification of cas no

The CAS Registry Mumber 1246170-07-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,6,1,7 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1246170-07:
(9*1)+(8*2)+(7*4)+(6*6)+(5*1)+(4*7)+(3*0)+(2*0)+(1*7)=129
129 % 10 = 9
So 1246170-07-9 is a valid CAS Registry Number.

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1246170-07-9Relevant academic research and scientific papers

Regioselective synthesis of benzo[c]chromen-6-ones by one-pot cyclocondensation of 1,3-bis(trimethylsilyloxy)-1,3-butadienes with 4-chloro-2-oxo-2H-chromene-3-carbaldehyde

Fatunsin, Olumide,Iaroshenko, Viktor O.,Dudkin, Sergii,Mkrtchyan, Satenik,Villinger, Alexander,Langer, Peter

experimental part, p. 4693 - 4695 (2010/09/12)

The cyclocondensation of 4-chloro-2-oxo-2H-chromene-3-carbaldehyde with 1,3-bis(silyloxy)-1,3-butadienes provides a convenient synthesis of benzo[c]chromen-6-ones.

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