40771-49-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40771-49-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,7,7 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 40771-49:
(7*4)+(6*0)+(5*7)+(4*7)+(3*1)+(2*4)+(1*9)=111
111 % 10 = 1
So 40771-49-1 is a valid CAS Registry Number.