805983-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 805983-04-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,5,9,8 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 805983-04:
(8*8)+(7*0)+(6*5)+(5*9)+(4*8)+(3*3)+(2*0)+(1*4)=184
184 % 10 = 4
So 805983-04-4 is a valid CAS Registry Number.