51811-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51811-53-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,8,1 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51811-53:
(7*5)+(6*1)+(5*8)+(4*1)+(3*1)+(2*5)+(1*3)=101
101 % 10 = 1
So 51811-53-1 is a valid CAS Registry Number.