900018-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900018-89-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,0,1 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 900018-89:
(8*9)+(7*0)+(6*0)+(5*0)+(4*1)+(3*8)+(2*8)+(1*9)=125
125 % 10 = 5
So 900018-89-5 is a valid CAS Registry Number.