73323-18-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73323-18-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,2 and 3 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 73323-18:
(7*7)+(6*3)+(5*3)+(4*2)+(3*3)+(2*1)+(1*8)=109
109 % 10 = 9
So 73323-18-9 is a valid CAS Registry Number.