98437-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98437-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,3 and 7 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 98437-20:
(7*9)+(6*8)+(5*4)+(4*3)+(3*7)+(2*2)+(1*0)=168
168 % 10 = 8
So 98437-20-8 is a valid CAS Registry Number.