57204-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57204-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,2,0 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 57204-87:
(7*5)+(6*7)+(5*2)+(4*0)+(3*4)+(2*8)+(1*7)=122
122 % 10 = 2
So 57204-87-2 is a valid CAS Registry Number.