129223-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129223-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,2 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 129223-16:
(8*1)+(7*2)+(6*9)+(5*2)+(4*2)+(3*3)+(2*1)+(1*6)=111
111 % 10 = 1
So 129223-16-1 is a valid CAS Registry Number.