56218-53-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56218-53-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,1 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 56218-53:
(7*5)+(6*6)+(5*2)+(4*1)+(3*8)+(2*5)+(1*3)=122
122 % 10 = 2
So 56218-53-2 is a valid CAS Registry Number.