98644-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 98644-63-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,6,4 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 98644-63:
(7*9)+(6*8)+(5*6)+(4*4)+(3*4)+(2*6)+(1*3)=184
184 % 10 = 4
So 98644-63-4 is a valid CAS Registry Number.