494194-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 494194-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,4,1,9 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 494194-57:
(8*4)+(7*9)+(6*4)+(5*1)+(4*9)+(3*4)+(2*5)+(1*7)=189
189 % 10 = 9
So 494194-57-9 is a valid CAS Registry Number.