218903-49-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 218903-49-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,8,9,0 and 3 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 218903-49:
(8*2)+(7*1)+(6*8)+(5*9)+(4*0)+(3*3)+(2*4)+(1*9)=142
142 % 10 = 2
So 218903-49-2 is a valid CAS Registry Number.