13307-66-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 13307-66-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,3,0 and 7 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 13307-66:
(7*1)+(6*3)+(5*3)+(4*0)+(3*7)+(2*6)+(1*6)=79
79 % 10 = 9
So 13307-66-9 is a valid CAS Registry Number.