223923-28-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 223923-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,3,9,2 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 223923-28:
(8*2)+(7*2)+(6*3)+(5*9)+(4*2)+(3*3)+(2*2)+(1*8)=122
122 % 10 = 2
So 223923-28-2 is a valid CAS Registry Number.