Extran Laboratory Cleaning Agent

Overview

Extran® is a premium line of laboratory-grade cleaning agents developed and manufactured by Merck KGaA (Darmstadt, Germany). Designed specifically for critical cleaning of glassware, plasticware, pipettes, cuvettes, and analytical instrumentation components, Extran formulations are engineered to remove trace organic, inorganic, and biological residues—without interfering with downstream analytical assays. Unlike generic detergents, Extran products are validated for compatibility with sensitive enzymatic and spectrophotometric methods, ensuring high reproducibility in clinical chemistry, life science research, and quality control laboratories.

Key Features

• pH-optimized variants: Available in alkaline (e.g., Extran® MA 02), acidic (e.g., Extran® MA 03), and neutral, phosphate-free formulations—enabling residue-specific cleaning strategies without compromising material compatibility.
• No interference with enzyme assays: Rigorously tested and certified non-inhibitory for clinically relevant enzymes including amylase, lactate dehydrogenase (LDH), hydroxybutyrate dehydrogenase (HBDH), glutamic-oxaloacetic transaminase (GOT/AST), and acid phosphatase—ensuring assay integrity and regulatory compliance.
• Chlorine-free and low-odor: Formulated without chlorine-based oxidants or volatile organic solvents, eliminating respiratory irritation and occupational health hazards commonly associated with traditional lab cleaners.
• Highly concentrated: Typical dilution ratios range from 1:100 to 1:500 (v/v), significantly reducing storage footprint, transportation emissions, and long-term operational cost per cleaning cycle.
• Environmental stewardship: Fully biodegradable per OECD 301 series standards; compliant with EU Detergents Regulation (EC No. 648/2004); meets stringent limits for phosphate content (<0.1% w/w), eliminating the need for specialized wastewater treatment prior to discharge.

Sample Compatibility & Compliance

Extran cleaning agents are compatible with borosilicate glass (e.g., Pyrex®, Duran®), polycarbonate, polypropylene, PTFE, stainless steel (AISI 316), and anodized aluminum surfaces. They are routinely used in GLP- and GMP-regulated environments—including pharmaceutical QC labs, clinical diagnostics centers, and academic core facilities—where trace contamination control is mandated by ISO 15195, CLSI EP21-A, and USP . The absence of sulfuric acid or other aggressive mineral acids ensures compatibility with automated bottle washers, ultrasonic cleaners, and pass-through tunnel washers without corrosion risk or surface etching.

Software & Data Management

As a chemical reagent—not an instrument—Extran does not incorporate embedded software or digital interfaces. However, its use supports full auditability within electronic laboratory notebooks (ELN) and LIMS platforms. Batch-specific Certificates of Analysis (CoA), Safety Data Sheets (SDS), and regulatory compliance documentation (e.g., REACH, RoHS, FDA ICH Q5C) are available via Merck’s online portal and integrated into enterprise procurement systems. For laboratories operating under 21 CFR Part 11, Extran lot traceability enables complete chain-of-custody documentation for cleaning validation protocols.

Applications

• Cleaning of volumetric flasks, burettes, and pipettes prior to titration or calibration
• Removal of protein, lipid, and hemoglobin residues from hematology analyzers and ELISA plate washers
• Preparation of reaction vessels for HPLC, GC, and ICP-MS analysis to prevent carryover and baseline drift
• Routine maintenance of microplate readers, centrifuges, and incubators where biofilm accumulation poses cross-contamination risks
• Validation-grade cleaning in method transfer studies and stability testing per ICH Q5A and Q5B guidelines

FAQ

Is Extran suitable for automated bottle washers?
Yes—Extran formulations are optimized for compatibility with all major laboratory bottle washer brands (e.g., Miele LabWash, BINDER LWS, Steelco). Their low-foaming profile prevents overflow and ensures uniform distribution across racks and baskets.
Can Extran be used for cleaning silicone tubing or rubber gaskets?
Alkaline Extran variants (e.g., MA 02) are compatible with silicone and EPDM elastomers when used within recommended concentration and temperature limits (≤60 °C). Acidic variants should be avoided on rubber materials.
Does Extran require special waste handling?
No—due to its biodegradability and absence of heavy metals, halogenated compounds, or regulated phosphates, Extran rinse water may be discharged directly into municipal wastewater systems in accordance with local environmental ordinances.
How is Extran validated for enzymatic assay compatibility?
Merck performs standardized interference testing per CLSI EP12-A2, measuring residual enzyme activity after exposure to cleaned substrates. Results are published in technical bulletins and referenced in peer-reviewed literature on clinical laboratory standardization.
What is the shelf life of Extran concentrates?
Unopened containers retain full efficacy for 36 months when stored at 15–25 °C in original packaging. After opening, use within 12 months and protect from moisture ingress.