20190-68-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20190-68-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,9 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20190-68:
(7*2)+(6*0)+(5*1)+(4*9)+(3*0)+(2*6)+(1*8)=75
75 % 10 = 5
So 20190-68-5 is a valid CAS Registry Number.