3204-87-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3204-87-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,2,0 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3204-87:
(6*3)+(5*2)+(4*0)+(3*4)+(2*8)+(1*7)=63
63 % 10 = 3
So 3204-87-3 is a valid CAS Registry Number.