29128-04-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29128-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,1,2 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 29128-04:
(7*2)+(6*9)+(5*1)+(4*2)+(3*8)+(2*0)+(1*4)=109
109 % 10 = 9
So 29128-04-9 is a valid CAS Registry Number.