71918-31-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71918-31-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,9,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 71918-31:
(7*7)+(6*1)+(5*9)+(4*1)+(3*8)+(2*3)+(1*1)=135
135 % 10 = 5
So 71918-31-5 is a valid CAS Registry Number.
71918-31-5Relevant academic research and scientific papers
Analgesic and tranquilizing spiro[dihydrobenzofuran]piperidines and pyrrolidines
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, (2008/06/13)
Novel Spiro[dihydrobenzofuran-piperidine and pyrrolidine]s and methods of preparing same are described. These compounds are useful as analgetics and tranquilizers and as intermediates.
