98954-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98954-98-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,5 and 4 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98954-98:
(7*9)+(6*8)+(5*9)+(4*5)+(3*4)+(2*9)+(1*8)=214
214 % 10 = 4
So 98954-98-4 is a valid CAS Registry Number.