397300-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 397300-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,7,3,0 and 0 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 397300-89:
(8*3)+(7*9)+(6*7)+(5*3)+(4*0)+(3*0)+(2*8)+(1*9)=169
169 % 10 = 9
So 397300-89-9 is a valid CAS Registry Number.