881637-68-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 881637-68-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,1,6,3 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 881637-68:
(8*8)+(7*8)+(6*1)+(5*6)+(4*3)+(3*7)+(2*6)+(1*8)=209
209 % 10 = 9
So 881637-68-9 is a valid CAS Registry Number.
881637-68-9Relevant articles and documents
Process for the preparation of intermediates of trandolapril and use thereof for the preparation of trandolapril
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Page/Page column 5, (2010/10/20)
A process for the preparation of an intermediate of trandolapril, (2S,3aR,7aS)-perhydroindole-2-carboxylic acid of Formula II is provided. Also provided are processes for preparing trandolapril.
