173306-81-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173306-81-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,3,0 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 173306-81:
(8*1)+(7*7)+(6*3)+(5*3)+(4*0)+(3*6)+(2*8)+(1*1)=125
125 % 10 = 5
So 173306-81-5 is a valid CAS Registry Number.