457073-87-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 457073-87-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,7 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 457073-87:
(8*4)+(7*5)+(6*7)+(5*0)+(4*7)+(3*3)+(2*8)+(1*7)=169
169 % 10 = 9
So 457073-87-9 is a valid CAS Registry Number.