853911-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 853911-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,3,9,1 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 853911-89:
(8*8)+(7*5)+(6*3)+(5*9)+(4*1)+(3*1)+(2*8)+(1*9)=194
194 % 10 = 4
So 853911-89-4 is a valid CAS Registry Number.