22855-18-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22855-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,8,5 and 5 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 22855-18:
(7*2)+(6*2)+(5*8)+(4*5)+(3*5)+(2*1)+(1*8)=111
111 % 10 = 1
So 22855-18-1 is a valid CAS Registry Number.