854837-84-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854837-84-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,8,3 and 7 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 854837-84:
(8*8)+(7*5)+(6*4)+(5*8)+(4*3)+(3*7)+(2*8)+(1*4)=216
216 % 10 = 6
So 854837-84-6 is a valid CAS Registry Number.