845668-83-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 845668-83-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,5,6,6 and 8 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 845668-83:
(8*8)+(7*4)+(6*5)+(5*6)+(4*6)+(3*8)+(2*8)+(1*3)=219
219 % 10 = 9
So 845668-83-9 is a valid CAS Registry Number.