66169-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 66169-83-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,1,6 and 9 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 66169-83:
(7*6)+(6*6)+(5*1)+(4*6)+(3*9)+(2*8)+(1*3)=153
153 % 10 = 3
So 66169-83-3 is a valid CAS Registry Number.