1172640-73-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1172640-73-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,7,2,6,4 and 0 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1172640-73:
(9*1)+(8*1)+(7*7)+(6*2)+(5*6)+(4*4)+(3*0)+(2*7)+(1*3)=141
141 % 10 = 1
So 1172640-73-1 is a valid CAS Registry Number.