Description

3-Ethyl-5-Phenyl-2-[2-[[3-(3-Sulfonatopropyl)Benzoxazol-2(3H)-Ylidene]Methyl]-1-Butenyl]Benzoxazol-3-Ium is a high-purity, sulfonated benzoxazolium dye intermediate, valued for its strong fluorescence and water solubility. This compound is essential for the synthesis of advanced functional dyes and optical materials. It is primarily sought by manufacturers in the specialty chemicals, optical brighteners, and biomedical imaging sectors for its unique photophysical properties.

Application

• Fluorescent Dye Synthesis: A key intermediate for creating water-soluble fluorescent probes and labels used in biological assays and diagnostics.
• Optical Brightening Agents (OBAs): Used in the production of high-performance brighteners for paper, textiles, and detergents.
• Laser Dyes and Photonic Materials: Serves as a precursor for dyes used in tunable lasers and other advanced optical applications.
• Biomedical Imaging: Potential use in developing contrast agents or fluorescent tags for cellular and molecular imaging.
• Sensor Technology: Employed in the research and development of chemical sensors and biosensors due to its responsive chromophore.
• Academic and Industrial R&D: A critical reagent for research in photochemistry, material science, and dye chemistry.

Basic Information

Item	Detail
Product Name	3-Ethyl-5-Phenyl-2-[2-[[3-(3-Sulfonatopropyl)Benzoxazol-2(3H)-Ylidene]Methyl]-1-Butenyl]Benzoxazol-3-Ium
CAS No.	63148-76-5
Molecular Formula	C31H31N2O4S-
Molecular Weight	527.66 g/mol (Free acid form)
Synonyms	3-Ethyl-2-[2-[(3-ethyl-5-phenylbenzoxazol-2-ylidene)methyl]-1-butenyl]-5-phenylbenzoxazolium 3-sulfopropanesulfonate; Benzoxazolium, 3-ethyl-5-phenyl-2-[2-[[3-(3-sulfopropyl)-2(3H)-benzoxazolylidene]methyl]-1-butenyl]-, inner salt; C.I. 48055; Sulforhodamine B derivative intermediate; Water-soluble benzoxazole dye; Fluorescent benzoxazolium salt
EINECS	Contact for details

Quality Control

Our production of this specialty intermediate adheres to strict in-process controls to ensure batch-to-batch consistency and high chemical purity. Quality is verified through advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants.

Specification

Item	Specification
Appearance	Orange to red-brown powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 0.5%
Solubility	Freely soluble in water, methanol

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