1173243-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1173243-87-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,3,2,4 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1173243-87:
(9*1)+(8*1)+(7*7)+(6*3)+(5*2)+(4*4)+(3*3)+(2*8)+(1*7)=142
142 % 10 = 2
So 1173243-87-2 is a valid CAS Registry Number.