727739-91-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 727739-91-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,7,7,3 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 727739-91:
(8*7)+(7*2)+(6*7)+(5*7)+(4*3)+(3*9)+(2*9)+(1*1)=205
205 % 10 = 5
So 727739-91-5 is a valid CAS Registry Number.