2097073-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2097073-17-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 2,0,9,7,0,7 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 2097073-17:
(9*2)+(8*0)+(7*9)+(6*7)+(5*0)+(4*7)+(3*3)+(2*1)+(1*7)=169
169 % 10 = 9
So 2097073-17-9 is a valid CAS Registry Number.