191109-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191109-47-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,1,0 and 9 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 191109-47:
(8*1)+(7*9)+(6*1)+(5*1)+(4*0)+(3*9)+(2*4)+(1*7)=124
124 % 10 = 4
So 191109-47-4 is a valid CAS Registry Number.