817163-84-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 817163-84-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,1,6 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 817163-84:
(8*8)+(7*1)+(6*7)+(5*1)+(4*6)+(3*3)+(2*8)+(1*4)=171
171 % 10 = 1
So 817163-84-1 is a valid CAS Registry Number.