Description

Poly(Oxy-1,2-Ethanediyl), .Alpha.-2-3,6-Bis(Diethylamino)Xanthylium-9-Ylbenzoyl-.Omega.-Hydroxy-, Hydrogen Sulfate is a cationic fluorescent dye derivative featuring a xanthylium (xanthene) core conjugated to a polyethylene glycol (PEG) chain and functionalized with diethylamino groups — conferring strong visible-light absorption, high molar absorptivity, and pH-dependent fluorescence. This compound serves as a specialized molecular probe and functional surfactant for advanced surface labeling, membrane interaction studies, and stimuli-responsive material design where precise photophysical control and aqueous compatibility are critical. It is primarily utilized by R&D laboratories and specialty chemical manufacturers in biophotonics, diagnostic reagent development, and smart polymer synthesis.

Application

• Fluorescent labeling of lipid bilayers and cellular membranes in live-cell imaging
• Development of pH-sensitive optical sensors for microenvironmental monitoring in hydrogels and drug delivery systems
• Surface modification agent for enhancing the dispersibility and interfacial activity of nanocarriers in aqueous formulations
• Functional dopant in electrochromic and photochromic polymer composites for adaptive optics
• Research-grade tracer in colloidal stability studies of cationic micellar systems
• Building block for synthesizing PEGylated xanthene-based photosensitizers in photodynamic therapy (PDT) research
• Calibration standard for fluorescence quantum yield measurements in UV-Vis spectrofluorometry
• Charge-modulating additive in conductive ink formulations for printed electronics

Basic Information

Product Name	Poly(Oxy-1,2-Ethanediyl), .Alpha.-2-3,6-Bis(Diethylamino)Xanthylium-9-Ylbenzoyl-.Omega.-Hydroxy-, Hydrogen Sulfate
CAS No.	102286-62-4
Molecular Formula	C35H44N2O8S
Molecular Weight	652.79 g/mol
Synonyms	Acridine Orange PEG Conjugate; Xanthylium-PEG-Diethylamine Dye; AO-PEG-HSO4; 3,6-Bis(diethylamino)-N-(2-hydroxyethyl)-9H-xanthen-9-ylidene)benzamide PEG sulfate; Fluorescent Cationic PEG Dye; CAS 102286-62-4; Polyethylene glycol mono[3,6-bis(diethylamino)xanthylium-9-ylbenzoate] hydrogen sulfate; PEGylated Acridine Orange Sulfate Salt
EINECS	Not listed (EC number not assigned)

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) are available upon request. All batches are verified for identity (IR, HPLC retention time), assay purity (≥97.5% by HPLC), residual solvents (meets ICH Q3C Class 3 limits), and absence of heavy metals (≤10 ppm total metals). Manufacturing adheres to ISO 9001-certified processes and supports GMP-aligned documentation for regulated applications.

Storage

Preserve in a tightly closed container, protected from light. Store at 15–25°C in a dry, well-ventilated area. Due to its hygroscopic nature, minimize exposure to ambient humidity during handling. Avoid contact with strong acid/organic solvent or fluoride/strong alkali environments.

Specification

Item	Specification
Appearance	Reddish-brown to dark purple solid (powder or amorphous flakes)
Identification (IR)	Conforms to reference spectrum (characteristic peaks at 1650 cm⁻¹ C=O, 1580 cm⁻¹ aromatic ring, 1240 cm⁻¹ C–O–C)
Assay (HPLC)	≥97.5%
Water Content (KF)	≤1.5%
Residue on Ignition	≤0.5%
Heavy Metals	≤10 ppm
Solubility	Freely soluble in water and methanol; slightly soluble in dichloromethane; insoluble in hexane

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