7016-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7016-89-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,0,1 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 7016-89:
(6*7)+(5*0)+(4*1)+(3*6)+(2*8)+(1*9)=89
89 % 10 = 9
So 7016-89-9 is a valid CAS Registry Number.