58457-91-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 58457-91-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,4,5 and 7 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 58457-91:
(7*5)+(6*8)+(5*4)+(4*5)+(3*7)+(2*9)+(1*1)=163
163 % 10 = 3
So 58457-91-3 is a valid CAS Registry Number.