186660-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 186660-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,6,6,6 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 186660-13:
(8*1)+(7*8)+(6*6)+(5*6)+(4*6)+(3*0)+(2*1)+(1*3)=159
159 % 10 = 9
So 186660-13-9 is a valid CAS Registry Number.
186660-13-9Relevant articles and documents
A process for the preparation of rivastigmine or a salt thereof
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Page/Page column 10, (2008/12/04)
There are provided processes for making rivastigmine. In one embodiment, the process includes reacting S-(-)-[1-(3-hydroxyphenyl)ethyl]dimethylamine with N-ethyl-N-methyl carbamoyl chloride in the presence of an organic base to obtain a free base of rivastigmine.
