161173-90-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161173-90-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,1,7 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 161173-90:
(8*1)+(7*6)+(6*1)+(5*1)+(4*7)+(3*3)+(2*9)+(1*0)=116
116 % 10 = 6
So 161173-90-6 is a valid CAS Registry Number.