854383-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 854383-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,4,3,8 and 3 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 854383-71:
(8*8)+(7*5)+(6*4)+(5*3)+(4*8)+(3*3)+(2*7)+(1*1)=194
194 % 10 = 4
So 854383-71-4 is a valid CAS Registry Number.