51111-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51111-51-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,1 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51111-51:
(7*5)+(6*1)+(5*1)+(4*1)+(3*1)+(2*5)+(1*1)=64
64 % 10 = 4
So 51111-51-4 is a valid CAS Registry Number.