Description

4',5'-Dibromo-3',6'-Dihydroxy-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One is a specialized brominated spirocyclic xanthene derivative that serves as a critical synthetic intermediate and functional dye precursor. Its unique molecular architecture, featuring a fused isobenzofuran-xanthene core, provides valuable photophysical and chemical reactivity properties for advanced material synthesis. This high-purity compound is essential for researchers and manufacturers in the fine chemicals, advanced material science, and analytical reagent sectors seeking to develop novel functional dyes, sensors, or complex organic frameworks.

Application

• Key Intermediate for Functional Dyes & Pigments: Serves as a crucial building block in the synthesis of complex xanthene-based dyes, fluorescent probes, and high-performance pigments.
• Advanced Material Synthesis: Used in the development of novel organic electronic materials, photochromic compounds, and light-harvesting arrays due to its rigid, conjugated structure.
• Research & Development (R&D): A valuable reagent in academic and industrial R&D for exploring new spirocyclic compounds, bromination chemistry, and heterocyclic systems.
• Analytical Chemistry & Sensor Development: Potential use as a precursor for designing selective chemosensors or indicators based on its structural motif and potential for further functionalization.
• Photonics and Optoelectronics: Investigated for applications in non-linear optics (NLO) and as a component in advanced optical materials.

Basic Information

Item	Details
Product Name	4',5'-Dibromo-3',6'-Dihydroxy-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One
CAS No.	6627-40-3
Molecular Formula	C23H16Br2O5
Molecular Weight	532.18 g/mol
Synonyms	4',5'-Dibromo-3',6'-dihydroxy-2',7'-dimethylspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; 2',7'-Dimethyl-4',5'-dibromofluorescein; Dibromodimethylfluorescein; 3',6'-Dihydroxy-4',5'-dibromo-2',7'-dimethylspiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one; Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one, 4',5'-dibromo-3',6'-dihydroxy-2',7'-dimethyl-; 6627-40-3; 4',5'-Dibromo-2',7'-dimethylfluorescein
EINECS	Contact for details

Quality Control

Our production of 4',5'-Dibromo-3',6'-Dihydroxy-2',7'-Dimethylspiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-3-One adheres to a rigorous quality management system to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, NMR, and mass spectrometry to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all specification results is 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 area at controlled room temperature (15-25°C). Keep the container tightly sealed when not in use to protect from moisture and atmospheric contaminants.

Specification

Item	Specification
Appearance	Orange to red powder or crystals
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.