685547-20-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 685547-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,5,5,4 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 685547-20:
(8*6)+(7*8)+(6*5)+(5*5)+(4*4)+(3*7)+(2*2)+(1*0)=200
200 % 10 = 0
So 685547-20-0 is a valid CAS Registry Number.