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Thermo Scientific™ Remel™ PYR Reagent, 25 mL
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Specifications:
| Application | Microbial Identification/AST | ||
| Storage Temperature | 2-8°C | ||
| Product Type | Microbial ID System | Forms | Liquid |
| Product Brand | Thermo Fisher Scientific™, Remel | ||
| Product Grade | Microbiology grade | ||
Rapid Colorimetric Reagent for Identification of Group A Streptococci and Enterococci
The Thermo Scientific™ Remel™ PYR Reagent is a ready-to-use liquid reagent designed for the rapid identification and differentiation of Group A Streptococci and Enterococci based on their ability to hydrolyze L-pyrrolidonyl-β-naphthylamide (PYR). This test provides a distinctive red color upon enzymatic hydrolysis and addition of the reagent, offering a fast and specific alternative to traditional diagnostic methods such as bacitracin and 6.5% NaCl tolerance tests.
With results visible in 1–2 minutes, the PYR Reagent is an essential component in clinical microbiology laboratories performing PYR disk or LAP disk tests.
Key Features & Benefits
- ✅ Rapid Results – Colorimetric change observed within 1–2 minutes
- ✅ Ready-to-Use Liquid Format – Convenient bottle with no reagent preparation required
- ✅ Easy-to-Interpret Readout – Positive result indicated by a clear red color development
- ✅ High Specificity – Reliable differentiation of Group A Streptococci and Enterococci
- ✅ Supports Multiple Test Formats – Compatible with PYR paper strips, disks, and LAP disks
- ✅ Validated Reference Method – Cited in multiple clinical microbiology publications
Technical Specifications
| Attribute | Details |
|---|---|
| Product Name | PYR Reagent |
| Catalog Number | R21258 |
| Format | Liquid solution in bottle |
| Volume | 25 mL |
| Target Organisms | Streptococcus pyogenes (Group A), Enterococcus spp. |
| Detection Method | Colorimetric (red color = positive) |
| Chemical Composition | 0.15 g/L N,N-dimethyl-aminocinnamaldehyde |
| For Use With | PYR Test, LAP Disk |
| Storage Conditions | 2°C to 8°C (Refrigerated) |
| Unit Size | Each |
| Shelf Life | Refer to product label or CoA |
| Intended Use | For in vitro diagnostic and microbiological use |
Applications
🧫 Clinical Microbiology Labs – Rapid identification of Group A streptococci and enterococci in culture
🏥 Hospital Diagnostics – Fast presumptive ID for early antimicrobial guidance
🧪 Microbiology Training & Education – Teaching tool for enzyme-based bacterial ID methods
🔬 Quality Control Testing – Verifies enzyme activity in known reference strains
Ordering Information
| Catalog # | Description | Pack Size |
|---|---|---|
| R21258 | PYR Reagent, 25 mL Bottle | 25 mL |
The Thermo Scientific™ Remel™ PYR Reagent offers a fast, specific, and easy-to-use method for the detection of PYRase activity in Group A streptococci and Enterococci. With a reliable colorimetric readout and compatibility with PYR test systems, it’s an indispensable component for clinical labs seeking accurate bacterial identification in minutes.