90228-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 90228-54-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,2,2 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 90228-54:
(7*9)+(6*0)+(5*2)+(4*2)+(3*8)+(2*5)+(1*4)=119
119 % 10 = 9
So 90228-54-9 is a valid CAS Registry Number.