205180-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205180-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,5,1,8 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 205180-16:
(8*2)+(7*0)+(6*5)+(5*1)+(4*8)+(3*0)+(2*1)+(1*6)=91
91 % 10 = 1
So 205180-16-1 is a valid CAS Registry Number.