126889-20-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 126889-20-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,8,8 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 126889-20:
(8*1)+(7*2)+(6*6)+(5*8)+(4*8)+(3*9)+(2*2)+(1*0)=161
161 % 10 = 1
So 126889-20-1 is a valid CAS Registry Number.