Syringe Filters, 25mm, Polypropylene, 0.45um Pore Size. Peach Polypropylene, AQ Brand. 100/PK.
Additional Info:
The 58045-PP25-C AQ™ Syringe Filters are pharmaceutical-grade polypropylene membrane filters designed for HPLC sample preparation and dissolution testing in regulated laboratory environments. Featuring a 0.45 µm polypropylene (PP) membrane, these filters deliver broad chemical compatibility, low extractables, and consistent chromatographic performance.
Polypropylene membranes are naturally hydrophilic with minimal conditioning required, making them suitable for aqueous and organic solvents, including acids and bases. This versatility makes them ideal for general-purpose filtration across diverse applications.
✅ Critical Compliance Advantage (No Flush Required)
Validated to meet key regulatory standards:
US FDA CFR Title 21, Part 210.3(b)(6) – minimum fiber release
USP <788> – particulate matter in injectables
USP “Sterile Water for Injection”
Benefits:
✅ No initial flushing required
✅ No 200 µL discard required
✅ Extractable-free from first filtrate
✅ Reduces risk of failed methods
Performance & Design
The 0.45 µm pore size is optimized for sample clarification and prefiltration, delivering reliable flow and particulate removal.
The polypropylene membrane provides excellent chemical resistance, supporting use with aqueous solutions, organic solvents, acids, and bases.
The 25 mm format supports higher sample volumes, making it well suited for routine and high-throughput workflows.
The 16-channel outlet design reduces back pressure, allowing smooth filtration with less manual effort.
The peach housing enables quick identification, and each pack includes a Certificate of Analysis.
Key Features
0.45 µm Polypropylene Membrane (Pharma Grade)
Broad chemical compatibility
Suitable for aqueous and organic systems
✅ No Initial Flush Required (Validated)
No 200 µL discard required
Low Conditioning Requirement
Minimal preparation needed
Consistent first filtrate performance
High Chemical Resistance
Compatible with solvents, acids, and bases
High Throughput (25 mm)
Handles larger sample volumes
Reduced Back Pressure
16-channel outlet design
Low Extractables
Clean chromatographic results
Regulatory Compliance
FDA CFR 21, USP <788>
Color-Coded (Peach)
Identifies PP filters
Typical Applications
HPLC & UHPLC Sample Preparation – general-purpose filtration
Dissolution Testing – pharmaceutical QC
Organic & Aqueous Samples – versatile compatibility
Chemical Analysis – acids, bases, solvents
Routine Laboratory Workflows – high-throughput use
Specifications
Membrane Material: Polypropylene (PP)
Pore Size: 0.45 µm
Diameter: 25 mm
Housing: Polypropylene (PP)
Color Code: Peach
Chemical Compatibility: Aqueous, organic, acids, bases
Hydrophilicity: Hydrophilic (low conditioning)
Extractables: None detectable (no flush required)
Sterilization: Autoclave or EO
Compliance: FDA CFR 21, USP <788>
Pack Size: 100/PK
Brand: AQ™
Resources & Ordering Options
Purchase polypropylene syringe filters, 0.45 µm, 25 mm – 50/pack quantity
Order polypropylene syringe filters, 0.45 µm, 25 mm – 1000/case quantity