198419-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198419-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,4,1 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 198419-20:
(8*1)+(7*9)+(6*8)+(5*4)+(4*1)+(3*9)+(2*2)+(1*0)=174
174 % 10 = 4
So 198419-20-4 is a valid CAS Registry Number.
198419-20-4Relevant articles and documents
Assymetric synthesis of azepines
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, (2008/06/13)
A novel process for the manufacture of compounds of the formula STR1 wherein R1 and R2 independently represent aroyl. The present invention also concerns novel intermediates used in the novel process for making compounds of formula I.