Process Media


TOYOPEARL SP-650S media is a strong cation exchanger for biomolecule purification. The resin is composed of a base material of hydroxylated methacrylic polymer beads that has been functionalized with sulfopropyl (S) strong cation exchange groups.  TOYOPEARL SP-650S resin has a high degree of chemical and mechanical stability, allowing cleaning-in-place (CIP) and high flow rates. TOYOPEARL SP-650S resin has a 100 nm pore size and a 35 µm bead size.

TOYOPEARL SP-650S resin is best used for high resolution intermediate purification and polishing process steps. If greater resolution is needed, the smaller particle TSKgel SP-5PW resins may be used. If lower resolution is desired, the larger particle TOYOPEARL SP-650M or TOYOPEARL SP-650C are recommended. As both the TOYOPEARL SP-650 and TSKgel SP-5PW resins use the same ligand and backbone chemistry, the selectivity between the two resin types will be unchanged.

TOYOPEARL SP-650S has a dynamic binding capacity for lysozyme of 50 g/L. TOYOPEARL SP-650S resin maintains capacity at increased linear velocities, has good pressure-flow characteristics, and will withstand back pressures up to 0.3 MPa.  


P/NDescriptionResin VolumeParticle Size (µm)   Price
19822TOYOPEARL SP-650S25 mL35  215
08437TOYOPEARL SP-650S250 mL35  1,530
14698TOYOPEARL SP-650S1 L35  -
08438TOYOPEARL SP-650S5 L35  -
21477TOYOPEARL SP-650S50 L35  -

Product Attributes

Base bead: HW-65
Pore size (mean): 100 nm
Particle size (mean): 35 µm
Ligand type: strong cation
Ligand pKa: 1.2
DBC: 40 - 60 g/L
Pressure rating: 0.3 MPa
Shipping buffer: 20% ethanol
pH stability: 2-13
Shelf life: 10 years




Code #DescriptionLiterature Type
AN024 Preserving Chromatographic Selectivity While Improving Your Process PurificationApplication Note
IM02 Instruction Manual for TOYOPEARL and TSKgel PW-type ResinsInstruction Manual
RIS0028 TOYOPEARL SP-650Resin Information Sheet
P/NDescriptionPrice ($)