5218-98-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5218-98-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,1 and 8 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 5218-98:
(6*5)+(5*2)+(4*1)+(3*8)+(2*9)+(1*8)=94
94 % 10 = 4
So 5218-98-4 is a valid CAS Registry Number.