126109-77-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126109-77-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,1,0 and 9 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 126109-77:
(8*1)+(7*2)+(6*6)+(5*1)+(4*0)+(3*9)+(2*7)+(1*7)=111
111 % 10 = 1
So 126109-77-1 is a valid CAS Registry Number.