819868-69-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 819868-69-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,9,8,6 and 8 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 819868-69:
(8*8)+(7*1)+(6*9)+(5*8)+(4*6)+(3*8)+(2*6)+(1*9)=234
234 % 10 = 4
So 819868-69-4 is a valid CAS Registry Number.