3340-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3340-87-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,4 and 0 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3340-87:
(6*3)+(5*3)+(4*4)+(3*0)+(2*8)+(1*7)=72
72 % 10 = 2
So 3340-87-2 is a valid CAS Registry Number.