72458-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72458-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,4,5 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 72458-40:
(7*7)+(6*2)+(5*4)+(4*5)+(3*8)+(2*4)+(1*0)=133
133 % 10 = 3
So 72458-40-3 is a valid CAS Registry Number.