1809170-71-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1809170-71-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,9,1,7 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1809170-71:
(9*1)+(8*8)+(7*0)+(6*9)+(5*1)+(4*7)+(3*0)+(2*7)+(1*1)=175
175 % 10 = 5
So 1809170-71-5 is a valid CAS Registry Number.