72308-61-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72308-61-3 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 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 72308-61:
(7*7)+(6*2)+(5*3)+(4*0)+(3*8)+(2*6)+(1*1)=113
113 % 10 = 3
So 72308-61-3 is a valid CAS Registry Number.