16203-18-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16203-18-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,2,0 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 16203-18:
(7*1)+(6*6)+(5*2)+(4*0)+(3*3)+(2*1)+(1*8)=72
72 % 10 = 2
So 16203-18-2 is a valid CAS Registry Number.