Description

1',4',5',7,8'-Pentabromo-3',6'-Dihydroxy-3-Oxospiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-2',7'-Dicarboxylic Acid is a highly functionalized, brominated xanthene derivative with a complex spirocyclic structure. This compound matters as a key advanced intermediate for synthesizing specialized dyes, pigments, and functional materials requiring high molecular complexity and specific halogenation. It is primarily needed by research institutions and industrial R&D departments in the fine chemical, specialty dye, and advanced material sectors.

Application

• Advanced Dye & Pigment Synthesis: Serves as a critical precursor for developing novel brominated xanthene dyes with unique optical properties.
• Functional Material Research: Used in the development of organic semiconductors, photoresists, and light-harvesting materials due to its conjugated system and multiple reactive sites.
• Analytical Chemistry Reagents: Potential use in synthesizing fluorescent probes or chromogenic agents for detection and sensing applications.
• Pharmaceutical Intermediate: Employed in exploratory research for creating complex molecular scaffolds in medicinal chemistry.
• Polymer Modification: Acts as a functional monomer or cross-linking agent to introduce bromine and carboxylic acid groups into polymer chains.
• Academic & Industrial R&D: A valuable building block for investigating new chemical reactions and material properties in laboratory settings.

Basic Information

Product Name	1',4',5',7,8'-Pentabromo-3',6'-Dihydroxy-3-Oxospiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-2',7'-Dicarboxylic Acid
CAS No.	72994-16-2
Molecular Formula	C21H5Br5O9
Molecular Weight	829.79 g/mol
Synonyms	Pentabromospirofluorene xanthene dicarboxylic acid; 72994-16-2; Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-2',7'-dicarboxylic acid, 1',4',5',7,8'-pentabromo-3',6'-dihydroxy-3-oxo-; 3',6'-Dihydroxy-1',4',5',7,8'-pentabromo-3-oxospiro[isobenzofuran-1(3H),9'-[9H]xanthene]-2',7'-dicarboxylic acid; Brominated fluorescein derivative; Brominated spirocyclic xanthene dicarboxylate
EINECS	Contact for details

Quality Control

Our 1',4',5',7,8'-Pentabromo-3',6'-Dihydroxy-3-Oxospiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-2',7'-Dicarboxylic Acid is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets precise customer specifications and research-grade standards. Certificates of Analysis (COA) detailing batch-specific results are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its complex organic nature and sensitivity to light, prolonged exposure to direct light or elevated temperatures should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Yellow to orange powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Research Grade)
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.5 %

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