727740-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 727740-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,7,7,4 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 727740-16:
(8*7)+(7*2)+(6*7)+(5*7)+(4*4)+(3*0)+(2*1)+(1*6)=171
171 % 10 = 1
So 727740-16-1 is a valid CAS Registry Number.