817569-73-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 817569-73-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,5,6 and 9 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 817569-73:
(8*8)+(7*1)+(6*7)+(5*5)+(4*6)+(3*9)+(2*7)+(1*3)=206
206 % 10 = 6
So 817569-73-6 is a valid CAS Registry Number.