51157-56-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51157-56-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,1,5 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 51157-56:
(7*5)+(6*1)+(5*1)+(4*5)+(3*7)+(2*5)+(1*6)=103
103 % 10 = 3
So 51157-56-3 is a valid CAS Registry Number.