Description

4'-Bromo-3',6'-Dihydroxyspiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-One is a specialized brominated xanthene derivative, a key intermediate in advanced organic synthesis. This compound matters for its role as a versatile building block in the development of functional dyes, fluorescent probes, and photoactive materials. Industrial and research chemists in the fine chemical, pharmaceutical, and material science sectors need it for creating novel compounds with specific optical and electronic properties.

Application

• Fluorescent Dye & Probe Synthesis: A crucial precursor for developing brominated fluorescein and rhodamine analogs used in bioimaging, diagnostics, and sensor technologies.
• Photoinitiator & Photoresist Components: Serves as a key intermediate in the manufacture of photoactive compounds for UV-curable inks, coatings, and advanced photolithography processes.
• Organic Electronic Materials: Used in the research and development of organic light-emitting diodes (OLEDs) and other optoelectronic devices due to its modifiable xanthene core.
• Pharmaceutical Intermediate: Acts as a building block for the synthesis of complex molecules with potential biological activity in medicinal chemistry research.
• Analytical Reagent Manufacturing: Employed in producing specialized reagents and indicators for chemical analysis and detection kits.
• Polymer & Specialty Chemical Additives: Incorporated into polymer chains or used to create additives that impart specific functional properties to advanced materials.

Basic Information

Product Name	4'-Bromo-3',6'-Dihydroxyspiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-One
CAS No.	25709-80-2
Molecular Formula	C₂₀H₁₁BrO₅
Molecular Weight	411.20 g/mol
Synonyms	4'-Bromofluorescein; 2-(4-Bromo-2,5-dihydroxyphenyl)-6-hydroxy-3H-xanthen-3-one; 4-Bromo-3,6-dihydroxy-9H-xanthen-9-one; Bromofluorescein; 4'-Bromo-3',6'-dihydroxyfluoran; 4-Bromofluorescein; 4'-Bromofluoresceine; CAS 25709-80-2
EINECS	Contact for details

Quality Control

Our 4'-Bromo-3',6'-Dihydroxyspiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-One is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting research and industrial-grade specifications. Comprehensive Certificates of Analysis (COA) detailing all test results are provided to guarantee traceability and batch-to-batch consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is easily oxidized (store under inert atmosphere) and is light-sensitive (store away from light). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere (e.g., nitrogen or argon).

Specification

Item	Specification
Appearance	Yellow to orange-red crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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