128984-39-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128984-39-4 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 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128984-39:
(8*1)+(7*2)+(6*8)+(5*9)+(4*8)+(3*4)+(2*3)+(1*9)=174
174 % 10 = 4
So 128984-39-4 is a valid CAS Registry Number.