104943-57-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104943-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,9,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104943-57:
(8*1)+(7*0)+(6*4)+(5*9)+(4*4)+(3*3)+(2*5)+(1*7)=119
119 % 10 = 9
So 104943-57-9 is a valid CAS Registry Number.