547739-13-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 547739-13-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,7,7,3 and 9 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 547739-13:
(8*5)+(7*4)+(6*7)+(5*7)+(4*3)+(3*9)+(2*1)+(1*3)=189
189 % 10 = 9
So 547739-13-9 is a valid CAS Registry Number.