72309-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72309-50-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,3,0 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72309-50:
(7*7)+(6*2)+(5*3)+(4*0)+(3*9)+(2*5)+(1*0)=113
113 % 10 = 3
So 72309-50-3 is a valid CAS Registry Number.