98142-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98142-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,1,4 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98142-98:
(7*9)+(6*8)+(5*1)+(4*4)+(3*2)+(2*9)+(1*8)=164
164 % 10 = 4
So 98142-98-4 is a valid CAS Registry Number.