89284-17-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89284-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,2,8 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89284-17:
(7*8)+(6*9)+(5*2)+(4*8)+(3*4)+(2*1)+(1*7)=173
173 % 10 = 3
So 89284-17-3 is a valid CAS Registry Number.