201865-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 201865-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,8,6 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 201865-26:
(8*2)+(7*0)+(6*1)+(5*8)+(4*6)+(3*5)+(2*2)+(1*6)=111
111 % 10 = 1
So 201865-26-1 is a valid CAS Registry Number.