5101-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5101-53-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,0 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5101-53:
(6*5)+(5*1)+(4*0)+(3*1)+(2*5)+(1*3)=51
51 % 10 = 1
So 5101-53-1 is a valid CAS Registry Number.