98442-89-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98442-89-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,4 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 98442-89:
(7*9)+(6*8)+(5*4)+(4*4)+(3*2)+(2*8)+(1*9)=178
178 % 10 = 8
So 98442-89-8 is a valid CAS Registry Number.