56739-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56739-66-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,7,3 and 9 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 56739-66:
(7*5)+(6*6)+(5*7)+(4*3)+(3*9)+(2*6)+(1*6)=163
163 % 10 = 3
So 56739-66-3 is a valid CAS Registry Number.