684-75-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 684-75-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,8 and 4 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 684-75:
(5*6)+(4*8)+(3*4)+(2*7)+(1*5)=93
93 % 10 = 3
So 684-75-3 is a valid CAS Registry Number.