73397-31-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73397-31-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,9 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73397-31:
(7*7)+(6*3)+(5*3)+(4*9)+(3*7)+(2*3)+(1*1)=146
146 % 10 = 6
So 73397-31-6 is a valid CAS Registry Number.