28149-55-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28149-55-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,4 and 9 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28149-55:
(7*2)+(6*8)+(5*1)+(4*4)+(3*9)+(2*5)+(1*5)=125
125 % 10 = 5
So 28149-55-5 is a valid CAS Registry Number.