6597-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6597-51-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,9 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 6597-51:
(6*6)+(5*5)+(4*9)+(3*7)+(2*5)+(1*1)=129
129 % 10 = 9
So 6597-51-9 is a valid CAS Registry Number.