Catalog Number - 58045-CA13-C

The 58045-CA13-C AQ™ Syringe Filters are pharmaceutical-grade membrane filters designed for HPLC sample preparation and dissolution testing in regulated laboratory environments. Featuring a 0.45 µm Cellulose Acetate (CA) membrane, these filters deliver consistent performance, low extractables, and reliable chromatographic results.

Cellulose Acetate membranes are naturally hydrophilic and surfactant-free, eliminating extractable contaminants common in many hydrophilic filters. With very low protein binding, they are ideal for biological and aqueous samples where maximum recovery is critical.

✅ Critical Compliance Advantage (No Flush Required)

Validated to meet key regulatory standards:

• US FDA CFR Title 21, Part 211.92 – minimum fiber release

• USP <788> – particulate matter in injectables

• USP “Sterile Water for Injection”

Benefits:

• ✅ No initial flushing required

• ✅ No 200 µL discard required

• ✅ Improves recovery and efficiency

• ✅ Reduces risk of failed methods

Performance & Design

The 0.45 µm pore size is optimized for sample clarification and prefiltration, delivering high flow rates and reduced clogging.

The 13 mm format is ideal for low to moderate sample volumes, offering efficient filtration with minimal waste—well suited for routine and sample-limited workflows.

CA membranes perform best with aqueous and biological samples, where low protein binding and clean baselines are essential.

The orange housing allows quick identification, and each pack includes a Certificate of Analysis.

Key Features

0.45 µm Cellulose Acetate Membrane (Pharma Grade)

• Ideal for aqueous and biological samples

• Surfactant-free, low extractables

✅ No Initial Flush Required (Validated)

• No 200 µL discard required

Low Protein Binding

• Maximizes analyte recovery

Hydrophilic Membrane

• No pre-wetting required

Optimized Volume (13 mm)

• Efficient filtration with reduced waste

Regulatory Compliance

• FDA CFR 21 (211.92), USP <788>

Color-Coded (Orange)

• Identifies CA filters

Typical Applications

• HPLC & UHPLC Sample Preparation – aqueous clarification

• Biological Samples – protein / biomolecule filtration

• Dissolution Testing – pharmaceutical QC

• Buffers & Media Filtration

• Routine Analytical Workflows

Specifications

• Membrane Material: Cellulose Acetate (CA)

• Pore Size: 0.45 µm

• Diameter: 13 mm

• Housing: Polypropylene (PP)

• Color Code: Orange

• Protein Binding: Low

• Hydrophilicity: Hydrophilic

• 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

• Order Cellulose Acetate syringe filters, 0.45 µm, 13 mm – 1000/case quantity

• Purchase Cellulose Acetate syringe filters, 0.45 µm, 13 mm – 50/pack quantity