51928-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51928-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,9,2 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 51928-51:
(7*5)+(6*1)+(5*9)+(4*2)+(3*8)+(2*5)+(1*1)=129
129 % 10 = 9
So 51928-51-9 is a valid CAS Registry Number.