680184-56-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 680184-56-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,0,1,8 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 680184-56:
(8*6)+(7*8)+(6*0)+(5*1)+(4*8)+(3*4)+(2*5)+(1*6)=169
169 % 10 = 9
So 680184-56-9 is a valid CAS Registry Number.
680184-56-9Relevant academic research and scientific papers
PROCESS FOR PRODUCTION OF FLUOROALKOXY-SUBSTITUTED BENZAMIDES AND THEIR INTERMEDIATES
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Page 9-10, (2008/06/13)
Roflumilast and new key intermediates therefor are prepared by processes involving use of carbonylation technology. Good overall yields can be achieved using available starting materials. The starting material for the process can be catechol, an o-R1
