205181-13-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 205181-13-1 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 1 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 205181-13:
(8*2)+(7*0)+(6*5)+(5*1)+(4*8)+(3*1)+(2*1)+(1*3)=91
91 % 10 = 1
So 205181-13-1 is a valid CAS Registry Number.