56682-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56682-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,8 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 56682-05:
(7*5)+(6*6)+(5*6)+(4*8)+(3*2)+(2*0)+(1*5)=144
144 % 10 = 4
So 56682-05-4 is a valid CAS Registry Number.