91761-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91761-43-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,6 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91761-43:
(7*9)+(6*1)+(5*7)+(4*6)+(3*1)+(2*4)+(1*3)=142
142 % 10 = 2
So 91761-43-2 is a valid CAS Registry Number.