17983-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17983-66-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,8 and 3 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 17983-66:
(7*1)+(6*7)+(5*9)+(4*8)+(3*3)+(2*6)+(1*6)=153
153 % 10 = 3
So 17983-66-3 is a valid CAS Registry Number.