7218-62-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7218-62-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,1 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 7218-62:
(6*7)+(5*2)+(4*1)+(3*8)+(2*6)+(1*2)=94
94 % 10 = 4
So 7218-62-4 is a valid CAS Registry Number.