Description

3',6'-(Dimethylamino)-3-Oxo-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-Ar-Carboxylic Acid is a high-purity, advanced organic intermediate characterized by its complex spirocyclic xanthene-based structure. This compound is critical for the synthesis of specialized dyes, fluorescent probes, and other high-value functional materials due to its unique photophysical properties. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, analytical chemistry, and specialty chemical sectors for developing next-generation diagnostic and imaging agents.

Application

• Key Intermediate for Fluorescent Dyes & Probes: Serves as a crucial building block in the synthesis of rhodamine and fluorescein derivatives used in bio-labeling, cell imaging, and flow cytometry.
• Pharmaceutical Research: Utilized in the development of drug candidates and diagnostic agents that require specific fluorescent tagging for tracking and analysis.
• Analytical Chemistry Reagents: Employed in the manufacture of sensitive chemical sensors and indicators for metal ion detection and pH measurement.
• Material Science: Used in the creation of advanced organic materials for optoelectronics, including light-emitting diodes (OLEDs) and nonlinear optical materials.
• Life Science Research: Integral for preparing conjugates used in fluorescence microscopy, immunohistochemistry, and in-situ hybridization assays.

Basic Information

Product Name	3',6'-(Dimethylamino)-3-Oxo-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-Ar-Carboxylic Acid
CAS No.	150347-56-1
Molecular Formula	C24H19NO5
Molecular Weight	401.41 g/mol
Synonyms	Rhodamine B Carboxylic Acid Derivative; Spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3',6'-bis(dimethylamino)-3-oxo-, Ar-carboxylic acid; 3',6'-Bis(dimethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one Ar-carboxylic acid; Xanthene-based carboxylic acid intermediate; Fluorescent dye precursor CAS 150347-56-1
EINECS	Contact for details

Quality Control

Our production of 3',6'-(Dimethylamino)-3-Oxo-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthene]-Ar-Carboxylic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, NMR and IR for structural confirmation, and residual solvent analysis. Certificates of Analysis (COA) documenting all critical specifications are provided to ensure traceability and compliance with your research or manufacturing requirements.

Storage

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

Specification

Item	Specification
Appearance	Orange to red powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 2.0%
Residual Solvents (GC)	Meets ICH guidelines

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