191043-78-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191043-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,0,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191043-78:
(8*1)+(7*9)+(6*1)+(5*0)+(4*4)+(3*3)+(2*7)+(1*8)=124
124 % 10 = 4
So 191043-78-4 is a valid CAS Registry Number.