178173-98-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 178173-98-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,8,1,7 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 178173-98:
(8*1)+(7*7)+(6*8)+(5*1)+(4*7)+(3*3)+(2*9)+(1*8)=173
173 % 10 = 3
So 178173-98-3 is a valid CAS Registry Number.