72725-84-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72725-84-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,7,2 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 72725-84:
(7*7)+(6*2)+(5*7)+(4*2)+(3*5)+(2*8)+(1*4)=139
139 % 10 = 9
So 72725-84-9 is a valid CAS Registry Number.