173938-23-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 173938-23-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,9,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 173938-23:
(8*1)+(7*7)+(6*3)+(5*9)+(4*3)+(3*8)+(2*2)+(1*3)=163
163 % 10 = 3
So 173938-23-3 is a valid CAS Registry Number.