98558-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98558-73-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,5,5 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98558-73:
(7*9)+(6*8)+(5*5)+(4*5)+(3*8)+(2*7)+(1*3)=197
197 % 10 = 7
So 98558-73-7 is a valid CAS Registry Number.