6869-66-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6869-66-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,6 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6869-66:
(6*6)+(5*8)+(4*6)+(3*9)+(2*6)+(1*6)=145
145 % 10 = 5
So 6869-66-5 is a valid CAS Registry Number.