5717-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5717-87-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,1 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5717-87:
(6*5)+(5*7)+(4*1)+(3*7)+(2*8)+(1*7)=113
113 % 10 = 3
So 5717-87-3 is a valid CAS Registry Number.