223555-80-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223555-80-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,5,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223555-80:
(8*2)+(7*2)+(6*3)+(5*5)+(4*5)+(3*5)+(2*8)+(1*0)=124
124 % 10 = 4
So 223555-80-4 is a valid CAS Registry Number.