53-52-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 53-52-1 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 5 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 53-52:
(4*5)+(3*3)+(2*5)+(1*2)=41
41 % 10 = 1
So 53-52-1 is a valid CAS Registry Number.