197972-03-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197972-03-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,7 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 197972-03:
(8*1)+(7*9)+(6*7)+(5*9)+(4*7)+(3*2)+(2*0)+(1*3)=195
195 % 10 = 5
So 197972-03-5 is a valid CAS Registry Number.