Syringe filters, color coded, CHROMAFIL CA, 25 mm, 0.45 µm

Inside the syringe filter cellulose acetate is used as membrane material. The hydrophilic CA membrane is suitable for filtration of water-soluble oligomers and polymers, especially suited for biological macromolecules with very high shape stability in aqueous solutions. Extremely low binding capacity for proteins. Also available in a sterile package (S) for filtration under sterile conditions (each filter is color coded and individually sealed). All CHROMAFIL filters are autoclavable (121 °C and 1.1 bar for 30 min)!


Technical Data


Hazardous material No
Method Filtration
Type Syringe filter, color coded
Housing type Wheel-like shaped housing
Hardware Polypropylene (PP) housing with filter membrane
Membrane type Cellulose acetate (CA)
Membrane properties Hydrophilic
Membrane diameter 25 mm
Membrane pore size 0.45 µm
Code type Color coded
Color code (top) Colorless
Color code (bottom) Red
Inlet Luer lock (top)
Outlet Luer tip (bottom)
Sample volume 5-100 mL
Recommended application(s) Filtration of water-soluble oligomers and polymers, especially suited for biological macromolecules, Suitable for HPLC columns packed with particles > 3 µm, GC, SFC
Sterile No
Binding capacity (proteins) Very low (21 µg / 25 mm)
Dead volume 80 µL
Filtration area 4.91 cm²
Storage temperature RT


Download link

Download Brochure CHROMAFIL Xtra (English)


Download Catalog Filtration (EN)