Description

Sulforhodamine 101 Acid Chloride is a reactive derivative of the fluorescent dye Sulforhodamine 101, specifically engineered for covalent labeling applications. This compound is critical for researchers and manufacturers who require stable, site-specific fluorescent conjugation to biomolecules, polymers, or surfaces. It is primarily utilized in the life sciences, diagnostics, and advanced materials sectors for creating high-performance fluorescent probes, sensors, and labeled reagents.

Application

• Bioconjugation and Probe Synthesis: Covalent labeling of proteins, antibodies, peptides, and nucleic acids to create fluorescent probes for bioassays.
• Diagnostic Kit Manufacturing: Production of fluorescently-labeled detection reagents for immunoassays, flow cytometry, and in-situ hybridization.
• Polymer and Material Science: Functionalization of polymers, nanoparticles, and surfaces to impart fluorescence for tracking, imaging, or sensing applications.
• Fluorescent Sensor Development: Synthesis of chemical sensors and indicators for environmental monitoring or intracellular ion detection.
• High-Throughput Screening (HTS): Creation of fluorescent tracers and tags used in drug discovery and molecular biology screening platforms.
• Microscopy and Imaging: Preparation of custom fluorescent stains and labels for advanced microscopy techniques.

Basic Information

Product Name	Sulforhodamine 101 Acid Chloride
CAS No.	82354-19-6
Molecular Formula	C31H29ClN2O6S2
Molecular Weight	625.15 g/mol
Synonyms	Sulforhodamine 101 sulfonyl chloride; Texas Red sulfonyl chloride; Texas Red acid chloride; Sulforhodamine 101 sulfonamide precursor; 2,6-Diamino-3-(sulforhodamine-101-yl)sulfonylphenyl chloride; Texas Red dye acid chloride; Reactive Texas Red dye; SR101 acid chloride
EINECS	Contact for details

Quality Control

Our Sulforhodamine 101 Acid Chloride is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, spectroscopic identification (NMR, IR), and functional group analysis to ensure consistent reactivity and performance. A detailed Certificate of Analysis (COA) documenting identity, purity, and impurity profile is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 15-25°C. This material is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability and reactivity. For long-term storage, consider storing under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Dark red to purple powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Area %)
Water Content (KF)	≤ 1.0 %
Functional Activity	Conforms (by derivatization test)

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