6819-13-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6819-13-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,1 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6819-13:
(6*6)+(5*8)+(4*1)+(3*9)+(2*1)+(1*3)=112
112 % 10 = 2
So 6819-13-2 is a valid CAS Registry Number.