128027-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128027-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,0,2 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 128027-71:
(8*1)+(7*2)+(6*8)+(5*0)+(4*2)+(3*7)+(2*7)+(1*1)=114
114 % 10 = 4
So 128027-71-4 is a valid CAS Registry Number.