39640-83-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39640-83-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,6,4 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 39640-83:
(7*3)+(6*9)+(5*6)+(4*4)+(3*0)+(2*8)+(1*3)=140
140 % 10 = 0
So 39640-83-0 is a valid CAS Registry Number.
39640-83-0Relevant academic research and scientific papers
Synthesis and reactions of 9,10-diazatetracyclo-[6.3.0.0.4,110.5.9]undecanes
Gribble, Gordon W.,Hirth, Bradford H.
, p. 719 - 726 (2007/10/03)
The tandem 1,3-dipolar cycloaddition between sydnones and 1,5-cyclooctadiene provides 9,10-diazatetracyclo[6.3.0.0.4,110.5,9]undecanes (the Weintraub reaction) in modest to good yields.
