128908-54-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128908-54-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,0 and 8 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 128908-54:
(8*1)+(7*2)+(6*8)+(5*9)+(4*0)+(3*8)+(2*5)+(1*4)=153
153 % 10 = 3
So 128908-54-3 is a valid CAS Registry Number.