945843-90-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 945843-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,5,8,4 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 945843-90:
(8*9)+(7*4)+(6*5)+(5*8)+(4*4)+(3*3)+(2*9)+(1*0)=213
213 % 10 = 3
So 945843-90-3 is a valid CAS Registry Number.
945843-90-3Relevant articles and documents
Process for Resolving Zopiclone
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Page/Page column 4, (2011/10/13)
The present invention provides a process for the preparation of the dextrorotatory isomer of zopiclone (eszopiclone). The present invention also provides eszopiclone di-p-anisolyl-L-tartrate and eszopiclone diacetyl-L-tartrate, which are useful as interme
