68891-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 68891-05-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,8,9 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 68891-05:
(7*6)+(6*8)+(5*8)+(4*9)+(3*1)+(2*0)+(1*5)=174
174 % 10 = 4
So 68891-05-4 is a valid CAS Registry Number.