170509-19-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 170509-19-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,0,5,0 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 170509-19:
(8*1)+(7*7)+(6*0)+(5*5)+(4*0)+(3*9)+(2*1)+(1*9)=120
120 % 10 = 0
So 170509-19-0 is a valid CAS Registry Number.