Description

4-[3,6-Bis(Diethylamino)-9H-Xanthen-9-Yl]Benzene-1,3-Disulphonic Acid is a high-purity xanthene dye intermediate, valued for its role in synthesizing advanced fluorescent markers and colorants. This compound is critical for ensuring the performance and stability of dyes used in demanding analytical and industrial applications. It is primarily required by manufacturers in the biotechnology, diagnostic, and specialty chemical sectors for producing sensitive detection reagents and high-value pigments.

Application

• Fluorescent Dye Synthesis: A key precursor for manufacturing rhodamine and other xanthene-based fluorescent dyes used in bio-labeling and flow cytometry.
• Diagnostic Reagents: Used in the production of reagents for clinical diagnostics, histology, and immunoassays.
• Laser Dyes: Serves as a building block for dyes utilized in tunable dye lasers and optical research.
• Industrial Colorants: Intermediate for creating high-performance pigments and colorants for inks, coatings, and plastics.
• Research & Development: Employed in chemical research for developing new photostable fluorescent probes and sensors.
• Photographic Sensitizers: Used in the formulation of specialized photographic and imaging chemicals.

Basic Information

Product Name	4-[3,6-Bis(Diethylamino)-9H-Xanthen-9-Yl]Benzene-1,3-Disulphonic Acid
CAS No.	85681-99-8
Molecular Formula	C29H35N2O7S2
Molecular Weight	587.73 g/mol
Synonyms	Rhodamine B sulfonyl chloride precursor; 9-(3,5-Disulfophenyl)-3,6-bis(diethylamino)xanthylium; Sulforhodamine B acid; Acid Red 52 intermediate; Xanthene, 9-(3,5-disulfophenyl)-3,6-bis(diethylamino)-; Lissamine Rhodamine B sulfonic acid; C.I. 45100; 3,6-Bis(diethylamino)-9-(3,5-disulfophenyl)xanthylium
EINECS	Contact for details

Quality Control

Our production of 4-[3,6-Bis(Diethylamino)-9H-Xanthen-9-Yl]Benzene-1,3-Disulphonic Acid adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for sensitive applications. The material is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are 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, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Dark red to purple powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents	Meets ICH guidelines

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