128428-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128428-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,4,2 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128428-59:
(8*1)+(7*2)+(6*8)+(5*4)+(4*2)+(3*8)+(2*5)+(1*9)=141
141 % 10 = 1
So 128428-59-1 is a valid CAS Registry Number.