Structure:
![](/Image Library/TBJS/img/Process/CEX/IEX_SP550_structure.jpg?code=c2524d87-45cd-4ef5-9711-89fb87ff4a88)
TOYOPEARL SP-550C resin is a strong cation exchanger useful for purification of molecules such as insulin and proteins up to 100kD. It is used for high throughput capture of feedstocks.
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Influence of pore size on Lysozyme DBC for TOYOPEARL cation exchangers @ 100 cm/hour
![](/Image Library/TBJS/img/Process/CEX/IEX_fig1CationTP_DBC.jpg?code=2afab97a-586c-4255-9a1e-c87acbe536c0)
pKa's for Ion Exchange groups
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