98220-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98220-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,2,2 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 98220-56:
(7*9)+(6*8)+(5*2)+(4*2)+(3*0)+(2*5)+(1*6)=145
145 % 10 = 5
So 98220-56-5 is a valid CAS Registry Number.