72318-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72318-53-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,1 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 72318-53:
(7*7)+(6*2)+(5*3)+(4*1)+(3*8)+(2*5)+(1*3)=117
117 % 10 = 7
So 72318-53-7 is a valid CAS Registry Number.