128826-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128826-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,8,2 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128826-89:
(8*1)+(7*2)+(6*8)+(5*8)+(4*2)+(3*6)+(2*8)+(1*9)=161
161 % 10 = 1
So 128826-89-1 is a valid CAS Registry Number.