209601-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 209601-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,9,6,0 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 209601-16:
(8*2)+(7*0)+(6*9)+(5*6)+(4*0)+(3*1)+(2*1)+(1*6)=111
111 % 10 = 1
So 209601-16-1 is a valid CAS Registry Number.