900449-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 900449-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,0,4,4 and 9 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 900449-31:
(8*9)+(7*0)+(6*0)+(5*4)+(4*4)+(3*9)+(2*3)+(1*1)=142
142 % 10 = 2
So 900449-31-2 is a valid CAS Registry Number.