899799-89-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 899799-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,9,9,7,9 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 899799-89:
(8*8)+(7*9)+(6*9)+(5*7)+(4*9)+(3*9)+(2*8)+(1*9)=304
304 % 10 = 4
So 899799-89-4 is a valid CAS Registry Number.