1173901-61-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1173901-61-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,9,0 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1173901-61:
(9*1)+(8*1)+(7*7)+(6*3)+(5*9)+(4*0)+(3*1)+(2*6)+(1*1)=145
145 % 10 = 5
So 1173901-61-5 is a valid CAS Registry Number.