1609166-20-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1609166-20-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,9,1,6 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1609166-20:
(9*1)+(8*6)+(7*0)+(6*9)+(5*1)+(4*6)+(3*6)+(2*2)+(1*0)=162
162 % 10 = 2
So 1609166-20-2 is a valid CAS Registry Number.