84016-65-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84016-65-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,1 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 84016-65:
(7*8)+(6*4)+(5*0)+(4*1)+(3*6)+(2*6)+(1*5)=119
119 % 10 = 9
So 84016-65-9 is a valid CAS Registry Number.