18406-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18406-28-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,4,0 and 6 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 18406-28:
(7*1)+(6*8)+(5*4)+(4*0)+(3*6)+(2*2)+(1*8)=105
105 % 10 = 5
So 18406-28-5 is a valid CAS Registry Number.