197523-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197523-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,5,2 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 197523-89:
(8*1)+(7*9)+(6*7)+(5*5)+(4*2)+(3*3)+(2*8)+(1*9)=180
180 % 10 = 0
So 197523-89-0 is a valid CAS Registry Number.