223557-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223557-80-0 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 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 223557-80:
(8*2)+(7*2)+(6*3)+(5*5)+(4*5)+(3*7)+(2*8)+(1*0)=130
130 % 10 = 0
So 223557-80-0 is a valid CAS Registry Number.