223401-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223401-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,4,0 and 1 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 223401-22:
(8*2)+(7*2)+(6*3)+(5*4)+(4*0)+(3*1)+(2*2)+(1*2)=77
77 % 10 = 7
So 223401-22-7 is a valid CAS Registry Number.