504397-79-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 504397-79-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,4,3,9 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 504397-79:
(8*5)+(7*0)+(6*4)+(5*3)+(4*9)+(3*7)+(2*7)+(1*9)=159
159 % 10 = 9
So 504397-79-9 is a valid CAS Registry Number.