128203-43-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128203-43-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,0 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128203-43:
(8*1)+(7*2)+(6*8)+(5*2)+(4*0)+(3*3)+(2*4)+(1*3)=100
100 % 10 = 0
So 128203-43-0 is a valid CAS Registry Number.