67912-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67912-89-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,9,1 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 67912-89:
(7*6)+(6*7)+(5*9)+(4*1)+(3*2)+(2*8)+(1*9)=164
164 % 10 = 4
So 67912-89-4 is a valid CAS Registry Number.