1240405-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1240405-20-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,4,0 and 5 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1240405-20:
(9*1)+(8*2)+(7*4)+(6*0)+(5*4)+(4*0)+(3*5)+(2*2)+(1*0)=92
92 % 10 = 2
So 1240405-20-2 is a valid CAS Registry Number.
1240405-20-2Relevant academic research and scientific papers
PROCESS FOR PRODUCING TETRAHYDROTRIAZOLOPYRIDINE DERIVATIVE
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Page/Page column 28, (2010/09/17)
A compound represented by the formula (I): wherein A and B each represent an aryl group or a heteroaryl group which may have a substituent, or a salt thereof can be produced by heating a compound represented by the formula (II): wherein A and B are as defined above, in a solvent in the presence of an acid.
