343811-87-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343811-87-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,8,1 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 343811-87:
(8*3)+(7*4)+(6*3)+(5*8)+(4*1)+(3*1)+(2*8)+(1*7)=140
140 % 10 = 0
So 343811-87-0 is a valid CAS Registry Number.