873394-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 873394-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,3,3,9 and 4 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 873394-71:
(8*8)+(7*7)+(6*3)+(5*3)+(4*9)+(3*4)+(2*7)+(1*1)=209
209 % 10 = 9
So 873394-71-9 is a valid CAS Registry Number.