7678-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7678-43-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,7 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 7678-43:
(6*7)+(5*6)+(4*7)+(3*8)+(2*4)+(1*3)=135
135 % 10 = 5
So 7678-43-5 is a valid CAS Registry Number.
7678-43-5Relevant academic research and scientific papers
A new regioselective synthesis of pterocarpans
Engler, Thomas A.,Combrink, Keith D.,Reddy, Jayachandra P.
, p. 454 - 455 (2007/10/02)
Pterocarpans are formed directly and efficiently via titanium(IV) catalysed reactions of 2H-chromenes and 2-alkoxy-1,4-benzoquinones.
