197916-50-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 197916-50-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,9,1 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 197916-50:
(8*1)+(7*9)+(6*7)+(5*9)+(4*1)+(3*6)+(2*5)+(1*0)=190
190 % 10 = 0
So 197916-50-0 is a valid CAS Registry Number.