191734-24-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191734-24-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,7,3 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 191734-24:
(8*1)+(7*9)+(6*1)+(5*7)+(4*3)+(3*4)+(2*2)+(1*4)=144
144 % 10 = 4
So 191734-24-4 is a valid CAS Registry Number.