234098-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 234098-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,4,0,9 and 8 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 234098-87:
(8*2)+(7*3)+(6*4)+(5*0)+(4*9)+(3*8)+(2*8)+(1*7)=144
144 % 10 = 4
So 234098-87-4 is a valid CAS Registry Number.