223553-15-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223553-15-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,5,5 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 223553-15:
(8*2)+(7*2)+(6*3)+(5*5)+(4*5)+(3*3)+(2*1)+(1*5)=109
109 % 10 = 9
So 223553-15-9 is a valid CAS Registry Number.