4017-66-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4017-66-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,0,1 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 4017-66:
(6*4)+(5*0)+(4*1)+(3*7)+(2*6)+(1*6)=67
67 % 10 = 7
So 4017-66-7 is a valid CAS Registry Number.