456-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 456-87-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,5 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 456-87:
(5*4)+(4*5)+(3*6)+(2*8)+(1*7)=81
81 % 10 = 1
So 456-87-1 is a valid CAS Registry Number.