73318-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73318-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,1 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 73318-23:
(7*7)+(6*3)+(5*3)+(4*1)+(3*8)+(2*2)+(1*3)=117
117 % 10 = 7
So 73318-23-7 is a valid CAS Registry Number.