51503-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51503-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,0 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 51503-40:
(7*5)+(6*1)+(5*5)+(4*0)+(3*3)+(2*4)+(1*0)=83
83 % 10 = 3
So 51503-40-3 is a valid CAS Registry Number.