223105-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223105-51-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,1,0 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 223105-51:
(8*2)+(7*2)+(6*3)+(5*1)+(4*0)+(3*5)+(2*5)+(1*1)=79
79 % 10 = 9
So 223105-51-9 is a valid CAS Registry Number.