1105-49-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1105-49-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,0 and 5 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1105-49:
(6*1)+(5*1)+(4*0)+(3*5)+(2*4)+(1*9)=43
43 % 10 = 3
So 1105-49-3 is a valid CAS Registry Number.