Description

Rhodamine B CAS NO 14899-08-2 is a highly fluorescent, water-soluble xanthene dye widely recognized for its brilliant pink to red color and strong fluorescence under UV light. This compound is valued for its exceptional photostability and high quantum yield, making it a critical tracer and labeling agent across diverse scientific and industrial fields. Key industries that rely on this dye include biotechnology for fluorescence microscopy and flow cytometry, analytical chemistry as a tracer in water flow studies, and manufacturing for coloring textiles, paper, and inks.

Application

• Fluorescent Tracer in Hydrology: Used to track and visualize water flow, leakage, and dispersion in environmental and engineering studies.
• Biological Staining & Microscopy: A vital fluorescent stain for labeling cells, tissues, and organelles in fluorescence microscopy and histology.
• Flow Cytometry & Cell Analysis: Employed as a fluorescent probe for detecting and sorting cells based on specific biomarkers.
• Laser Dye & Optoelectronics: Serves as an active medium in tunable dye lasers and in the development of fluorescent sensors.
• Industrial Coloring Agent: Imparts a vibrant pink-red color to textiles, paper, leather, and certain types of inks and coatings.
• Analytical Reagent: Used in spectrophotometric and fluorometric analytical methods for the determination of various substances.

Basic Information

Product Name	Rhodamine B
CAS No.	14899-08-2
Molecular Formula	C28H31ClN2O3
Molecular Weight	479.02 g/mol
Synonyms	Basic Violet 10; C.I. 45170; Rhodamine B chloride; Brilliant Pink B; Tetraethylrhodamine; [9-(2-Carboxyphenyl)-6-(diethylamino)-3H-xanthen-3-ylidene]diethylammonium chloride; Rhodamine B, Basic
EINECS	238-953-3

Quality Control

Our Rhodamine B is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot is subjected to rigorous analytical testing, including identification by infrared spectroscopy (IR), purity assay by HPLC, and checks for specific impurities. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials and sources of ignition. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided to prevent degradation.

Specification

Item	Specification
Appearance	Green crystalline powder or reddish-violet powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Fluorescence	Strong emission under UV light
Solubility (in Water)	Freely soluble, clear red solution

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