577-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 577-87-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,7 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 577-87:
(5*5)+(4*7)+(3*7)+(2*8)+(1*7)=97
97 % 10 = 7
So 577-87-7 is a valid CAS Registry Number.