1172307-43-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172307-43-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,3,0 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1172307-43:
(9*1)+(8*1)+(7*7)+(6*2)+(5*3)+(4*0)+(3*7)+(2*4)+(1*3)=125
125 % 10 = 5
So 1172307-43-5 is a valid CAS Registry Number.