This is a Canon PGI-2500XL magenta ink cartridge. This cartridge has been made by Canon to work faultlessly with your Canon Maxify printer.
The PGi-2500XL magenta cartridge can produce up to 1,295 pages of bright, deep pink and red prints before it will need to be replaced so it's great for office use.
The ink inside the cartridge is a pigment based ink, this type of ink is design to sit on the top of the page rather than sinking in like a dye ink. This means your prints will be sharper and brighter, which is great for printing text and presentations.