91142-47-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91142-47-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,4 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91142-47:
(7*9)+(6*1)+(5*1)+(4*4)+(3*2)+(2*4)+(1*7)=111
111 % 10 = 1
So 91142-47-1 is a valid CAS Registry Number.