Description

Rhodamine 19 is a high-purity, synthetic organic dye belonging to the xanthene class, known for its intense fluorescence and excellent photostability. This compound is a critical intermediate and functional dye for advanced applications requiring precise optical properties and reliable performance. It is essential for manufacturers and researchers in the biotechnology, analytical chemistry, and advanced materials sectors who demand consistent quality and spectral characteristics for their sensitive processes.

Application

• Fluorescent Labeling & Probes: Used as a core structure or precursor for synthesizing fluorescent labels, tags, and molecular probes in bioimaging and diagnostic assays.
• Laser Dyes & Optical Materials: Serves as an active medium in tunable dye lasers and as a dopant in the development of solid-state optical materials and sensors.
• Photodynamic Therapy (PDT) Research: Investigated as a potential photosensitizer in medical research for targeted cancer therapies.
• Analytical Chemistry: Employed as a tracer or staining agent in chromatography, capillary electrophoresis, and fluorescence spectroscopy for detection and quantification.
• Advanced Material Synthesis: Incorporated into polymers, nanoparticles, and coatings to impart specific fluorescent properties for security inks, anti-counterfeiting measures, and optoelectronic devices.

Basic Information

Product Name	Rhodamine 19
CAS No.	25152-49-2
Molecular Formula	C₂₀H₁₅NO₃
Molecular Weight	317.34 g/mol
Synonyms	Rhodamine 19; 9-(2-Carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-one; 6-(Diethylamino)-9-(2-carboxyphenyl)-3H-xanthen-3-one; Rhodamine 110 related compound B; Xanthylium, 9-(2-carboxyphenyl)-3,6-bis(ethylamino)-, chloride; Basic Red 1 impurity; CI 45170 base
EINECS	Contact for details

Quality Control

Our Rhodamine 19 is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity, spectroscopy for identity confirmation, and tests for residual solvents and heavy metals. A detailed Certificate of Analysis (COA) documenting all specifications is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Keep the container tightly sealed in a dry environment to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Dark red to purple crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0 %
Residue on Ignition	≤ 0.5 %
Heavy Metals (as Pb)	≤ 20 ppm
Fluorescence Characteristics	Conforms to reference

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