137897-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 137897-93-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,8,9 and 7 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 137897-93:
(8*1)+(7*3)+(6*7)+(5*8)+(4*9)+(3*7)+(2*9)+(1*3)=189
189 % 10 = 9
So 137897-93-9 is a valid CAS Registry Number.
137897-93-9Relevant articles and documents
Pyrimidine nucleoside derivative and antiviral agent containing the derivative as active ingredient
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, (2008/06/13)
A pyrimidine nucleoside derivative and pharmaceutically acceptable salt thereof specified by the presence of ethyl group or isopropyl group at 5-position of the pyrimidine ring and the presence of a (substituted) phenylthio or a (substituted) benzyl group