934237-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 934237-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,4,2,3 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 934237-83:
(8*9)+(7*3)+(6*4)+(5*2)+(4*3)+(3*7)+(2*8)+(1*3)=179
179 % 10 = 9
So 934237-83-9 is a valid CAS Registry Number.
934237-83-9Relevant academic research and scientific papers
NOVEL PROCESS FOR THE PREPARATION OF TOLTERODINE
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Page/Page column 15-16, (2010/11/26)
The present invention relates to a novel and improved process for the preparation of tolterodine of formula I. Key steps involved in the process are a vinyl Grignard reaction on a benzophenone derivative of formula XXI to get the vinyl carbinol derivative
