8355-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 8355-89-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 8,3,5 and 5 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 8355-89:
(6*8)+(5*3)+(4*5)+(3*5)+(2*8)+(1*9)=123
123 % 10 = 3
So 8355-89-3 is a valid CAS Registry Number.