128988-95-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128988-95-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,8 and 8 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 128988-95:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*8)+(2*9)+(1*5)=194
194 % 10 = 4
So 128988-95-4 is a valid CAS Registry Number.