1172069-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172069-28-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,0,6 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1172069-28:
(9*1)+(8*1)+(7*7)+(6*2)+(5*0)+(4*6)+(3*9)+(2*2)+(1*8)=141
141 % 10 = 1
So 1172069-28-1 is a valid CAS Registry Number.