197980-26-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197980-26-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,8 and 0 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 197980-26:
(8*1)+(7*9)+(6*7)+(5*9)+(4*8)+(3*0)+(2*2)+(1*6)=200
200 % 10 = 0
So 197980-26-0 is a valid CAS Registry Number.