173102-61-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173102-61-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,1,0 and 2 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 173102-61:
(8*1)+(7*7)+(6*3)+(5*1)+(4*0)+(3*2)+(2*6)+(1*1)=99
99 % 10 = 9
So 173102-61-9 is a valid CAS Registry Number.