203499-11-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 203499-11-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,4,9 and 9 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 203499-11:
(8*2)+(7*0)+(6*3)+(5*4)+(4*9)+(3*9)+(2*1)+(1*1)=120
120 % 10 = 0
So 203499-11-0 is a valid CAS Registry Number.