812-53-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 812-53-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 2 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 812-53:
(5*8)+(4*1)+(3*2)+(2*5)+(1*3)=63
63 % 10 = 3
So 812-53-3 is a valid CAS Registry Number.