1172028-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172028-71-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,0,2 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1172028-71:
(9*1)+(8*1)+(7*7)+(6*2)+(5*0)+(4*2)+(3*8)+(2*7)+(1*1)=125
125 % 10 = 5
So 1172028-71-5 is a valid CAS Registry Number.