1351691-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1351691-90-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,1,6,9 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1351691-90:
(9*1)+(8*3)+(7*5)+(6*1)+(5*6)+(4*9)+(3*1)+(2*9)+(1*0)=161
161 % 10 = 1
So 1351691-90-1 is a valid CAS Registry Number.
1351691-90-1Relevant articles and documents
SYNTHETIC METHOD OF ENTECAVIR AND INTERMEDIATE COMPOUNDS THEREOF
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Page/Page column 67; 68, (2017/10/31)
The present invention relates to preparation method of drugs and intermediate compounds thereof, in particular, to preparation method of entecavir, intermediate compounds thereof and synthetic method of said intermediate compounds.
