58720-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58720-45-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,7,2 and 0 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 58720-45:
(7*5)+(6*8)+(5*7)+(4*2)+(3*0)+(2*4)+(1*5)=139
139 % 10 = 9
So 58720-45-9 is a valid CAS Registry Number.