28558-70-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28558-70-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,5,5 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28558-70:
(7*2)+(6*8)+(5*5)+(4*5)+(3*8)+(2*7)+(1*0)=145
145 % 10 = 5
So 28558-70-5 is a valid CAS Registry Number.