173173-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173173-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,1,7 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 173173-72:
(8*1)+(7*7)+(6*3)+(5*1)+(4*7)+(3*3)+(2*7)+(1*2)=133
133 % 10 = 3
So 173173-72-3 is a valid CAS Registry Number.