51009-13-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51009-13-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,0,0 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 51009-13:
(7*5)+(6*1)+(5*0)+(4*0)+(3*9)+(2*1)+(1*3)=73
73 % 10 = 3
So 51009-13-3 is a valid CAS Registry Number.