17673-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17673-81-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,6,7 and 3 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17673-81:
(7*1)+(6*7)+(5*6)+(4*7)+(3*3)+(2*8)+(1*1)=133
133 % 10 = 3
So 17673-81-3 is a valid CAS Registry Number.