Description

Janelia Fluor 549,Se is a high-performance, selenium-containing fluorescent dye belonging to the renowned Janelia Fluor family, designed for advanced bioimaging and super-resolution microscopy. Its core value lies in its exceptional photostability, brightness, and compatibility with standard filter sets, enabling researchers to achieve clearer, more reliable, and longer-lasting imaging data. This product is essential for scientists and R&D teams in the biotechnology, pharmaceutical, and academic research sectors who require precise labeling and tracking of biomolecules in complex cellular environments.

Application

• Super-Resolution Microscopy (STORM, PALM): As a photoswitchable or photostable dye for techniques requiring high localization precision.
• Single-Molecule Tracking: For labeling and real-time visualization of proteins, lipids, or other biomolecules within live or fixed cells.
• Multicolor Imaging: Used in conjunction with other Janelia Fluor dyes for multiplexed fluorescence experiments.
• Bioconjugation & Probe Development: Serving as a critical component in the synthesis of antibody-dye conjugates, nucleic acid probes, or other targeted imaging agents.
• Neuroscience Research: Particularly valuable for neuronal tracing and synaptic structure analysis due to its performance in dense tissue.
• Diagnostic Assay Development: For creating high-sensitivity fluorescent detection systems in clinical and research diagnostics.

Basic Information

Product Name	Janelia Fluor 549,Se
CAS No.	1811539-32-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	JF549,Se; Janelia Fluor® 549,Se; Selenium-containing Janelia Fluor 549; 549,Se Fluorophore; Fluorescent Probe 1811539-32-8; Super-resolution dye 549,Se; Photostable dye 549,Se
EINECS	Contact for details

Quality Control

Our Janelia Fluor 549,Se is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high performance for critical research applications. Each lot undergoes comprehensive analytical testing, including HPLC for purity, mass spectrometry for identity confirmation, and functional validation in relevant assay systems. A detailed Certificate of Analysis (COA) documenting identity, purity, and performance specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below under desiccant. This compound is hygroscopic (moisture-sensitive) and light-sensitive. Allow the vial to equilibrate to room temperature in a desiccator before opening to prevent condensation and moisture uptake.

Specification

Item	Specification
Appearance	Orange to red solid or film
Identification (Mass Spec)	Conforms to structure
Purity (HPLC)	≥ 95%
Absorption Max (λmax)	~549 nm
Emission Max (λem)	~570 nm
Extinction Coefficient (ε)	Contact for details
Quantum Yield (φ)	Contact for details
Moisture Content (KF)	< 1.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.