1105-18-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1105-18-6 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, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1105-18:
(6*1)+(5*1)+(4*0)+(3*5)+(2*1)+(1*8)=36
36 % 10 = 6
So 1105-18-6 is a valid CAS Registry Number.