72590-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72590-57-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,5,9 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72590-57:
(7*7)+(6*2)+(5*5)+(4*9)+(3*0)+(2*5)+(1*7)=139
139 % 10 = 9
So 72590-57-9 is a valid CAS Registry Number.