126809-81-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126809-81-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,8,0 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 126809-81:
(8*1)+(7*2)+(6*6)+(5*8)+(4*0)+(3*9)+(2*8)+(1*1)=142
142 % 10 = 2
So 126809-81-2 is a valid CAS Registry Number.